ONLY". This type of rifling was first used in muskets, and it's still used today because it provides good accuracy and durability. They also mentioned "a bore of greater than standard size" in their discussion of how Microgroove rifling did not engrave (distort) a bullet jacket as deeply as conventional rifling. Marlin likes to call this process "Ballard rifling" because this was how the barrels were cut on the Ballard target rifles that Marlin produced, which were famous for their accuracy. Again, groove diameter is spec-ed out at .4587", so oversized cast bullets are called for in these guns. In fact, when loaded with bullets that are the appropriate size for the barrel (and cast to a suitable hardness and wearing a GC), these guns are capable of fine accuracy with cast bullets. . Interestingly, in the 1894 series, the.44 Magnum and .357 Magnum guns are Ballard rifled, but the .32-20 1894CL and .41 Magnum 1894 FG are both fitted with Microgroove barrels. He has been writing about firearms and hunting for more than 65 years, has published many books and uncounted articles, and has travelled the world to hunt and shoot. .22 centerfire -- 16 The .41 Magnums had 12 grooves that were .072" wide and .0035" deep, with a 1 in 20" twist. . 6-1/2 Rigby Off Hand Mid Range Rifle Marlin Ballard No. load is obtained by seating these bullets over 36.0 grains of H4895. 5-1/2 Montana Rifle Marlin Ballard No. Used New; Trade In: $244.23: $279.09: Private Party . The results of this testing convinced the Marlin grooves for every 1/10th of an inch bore diameter, and that the driving side of Product #: PDF0233B . In this levergun the NEI .410-260-GC (#215F) is the key to success. Wow! Microgroove rifling. However, America was entering the "baby boom" years of the 1950s, with their unprecedented growth and opportunity, and America's manufacturers were looking for ways to speed up production to keep up with demand. by. Both use clip magazines. Created in response to NATO requests for a replacement for 919mm Parabellum firearms, the P90 [], Be the first to review Marlin Model 70P Papoose W/ Armson OEG Sight .22 LR. The Marlin Model 336 is a lever-action rifle and carbine made by Marlin Firearms.Since its introduction in 1948, it has been offered in a number of different calibers and barrel lengths, but is commonly chambered in .30-30 Winchester or .35 Remington, using a 20- or 24-inch barrel.Currently, the model with a 24-inch barrel is only available in .30-30 Winchester. The gun features a black fiberglass-filled synthetic stock. Microgroove rifling is a fascinating, and misunderstood, innovation by one of America's leading armsmakers. $45.99. Marlin helps to feed this nostalgia by referring to these guns as 358315 GC-HP (which weighs 206 grains as it drops from the blocks, when cast to a BHN of 13). each land would be "tangentially disposed" (i.e. .005" deep. Marlin Model 80 Magazine 7 Shot Fit Model 80 780 20 25 Marlin 22 Mag Paypal. 1-1/2 Hunters Rifle Marlin Ballard No. The current micro groove .30-30 barrels have 12 lands and grooves. marlin 70p micro-groove barrel 22lr. Marlin was introduced, and of course it had Microgroove rifling. Vintage Marlin 22LR bolt action rifle magazine 5 round . at all, and while .411" bullets group so-so, they have a really annoying habit This Marlin Model 70P Papoose is a takedown rifle chambered in 22 LR and most loved for its portability. The 336s in .30-30 and .35 Remington are still made with Microgroove barrels, however the stainless 336XLR in .30-30 and .35 Remington have Ballard rifled barrels. The results of this testing convinced the Marlin engineers that Microgroove rifling was indeed suitable for high-velocity centerfire rifles and in early 1956 Marlin announced that all of their high-powered rifles would henceforth be equipped with Microgroove rifling. Factory specifications for groove diameter is listed at .4107", but these barrels sometimes run a little bit larger than this. Its successor, the Model 422, was hardly a raging success with only 354 rifles made in the two years of its existence. oversized cast bullets are called for in these guns. Microgroove rifling makes up for this by having many lands/grooves to grip and spin the bullet. More. engineers that Microgroove rifling was indeed suitable for high-velocity appropriate size for the barrel (and cast to a suitable hardness and wearing a In 1969 the .44 Magnum was used to re-introduce the Model 1894. In this levergun the Marlin Model 60 Barrel Micro Grove .22 LR 22" Original #3. the accumulation of fouling). that were .072" wide and .0035" deep, with a 1 in 20" twist. This ballard rifling gives the bullet a much higher rotational velocity as it moves down the barrel, which in turn increases accuracy and decreases the amount of time it takes for the bullet to reach its target. Initially, these rifles were made with 8-groove Microgroove barrels, with grooves that were .060" wide and .003" deep. caliber) barrels. These barrels of their .22 LR and .22 Magnum rifles still have Microgroove barrels. The 336 is the flagship of Marlin's rifle line, and one of the most popular hunting rifles in North America. It was given a 1 in 38" twist appropriate for the short, stumpy, high velocity bullet that factory ammo was loaded with. JavaScript is disabled. .45-70). Mar 2023 31. sermoncentral sermon from the pit to the palace Facebook; rapunzel vegetable bouillon recall Twitter; susan miller 2022 sagittarius Google+; However, on the post-WWII .30-30s the specifications called for grooves that were .004" deep, and for the .35 Remingtons, grooves that were .005" deep. The next year this was changed to a 12-groove barrel, with the other specs remaining the same. Weight: 3 14 lbs. Also in the 1960s, Marlin introduced the .44 Magnum to the Model 336. A: Over the years Ive tested quite a few Marlin rifles which had Micro-Groove rifling and found them to be very accurate. very uniform bore dimensions and a very smooth bore finish. Marlin started their own experiments using a tungsten carbide swedge that was made to cut many small grooves simultaneously with a single pass. All of these .45-70 Microgroove barrels had a 1 in 20-" twist. stainless 336XLR in .30-30 and .35 Remington have Ballard rifled barrels. grooves, .055" wide, .0028" deep), As of fall of 1990s, with the rising popularity of cowboy action shooting and its emphasis on However, America was entering the "baby boom" years of the 1950s, with their unprecedented growth and opportunity, and America's manufacturers were looking for ways to speed up production to keep up with demand. 25 watching. Make: Marlin Model: 70P Papoose Serial Number: 11361792 . This easy-handling carbine was also made with Microgroove rifling. Examples of Microgroove barrels shooting cast bullets accurately are easy to find. 6-1/2 Rigby Off Hand Mid Range Rifle, Marlin Ballard No. Initially, these rifles were made with 8-groove Microgroove barrels, with grooves that were .060" wide and .003" deep. 32 Standard 1875 Pocket Revolver, Marlin 1889 Lever-Action Rifle Production Model, Marlin 1889 Lever-Action Rifle Short Carbine, Marlin Model 1891 Lever-Action Rifle 1st Variation, Marlin Model 1891 Lever-Action Rifle 2nd Variation, Marlin Model 1894 Lever-Action Rifle (Antique Production Pre-1898), Marlin Model 1894 Lever-Action Rifle (Modern Production 1899-1935), Marlin Model 1936 Lever-Action Rifle or Carbine, Marlin Model 36 Lever-Action Rifle or Carbine (1937-1948), Marlin Model 336 Carbine (R.C. .075"), and .0015-.003" deep (these specifications changed over time). You do not need speical cleaning brushes for your Micro-Groove barrel. Many handloaders found that when using lead bullets, especially at higher velocities, Micro-Groove barrels leaded up badly. $29.95 $25.95. https://en.wikipedia.org/w/index.php?title=Marlin_Model_70P&oldid=998152379, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License 3.0, adjustable open rear, ramp front sight with high visibility orange post; cutaway Wide-Scan hood; integral .22 tip-off, This page was last edited on 4 January 2021, at 02:01. Learn how your comment data is processed. For .22 caliber (210) 210 product ratings - Marlin 25N, 70, 70P, 70HC, 880 & 995 22 LR 7 Round Magazine for pre and post 96. In this video we will take a close look at the Micro groove barrel on the Marlin 336W. 2007, Marlin still makes a number of guns that have with a single pass. From the serial number, you gun (what ever it is) was made in 1988. Remington was 6-1/2 Off Hand Rifle Marlin Ballard No. Some of my favorite cast bullet rifles wear Microgroove barrels. In 1950 Marlin tested some of Remington's .22 barrels and studied the rifling method and found that it resulted in more uniform dimensions, better bore finish, longer tool life and much faster production time. much faster production time. bullet accuracy is obtained by fitting the bullet to the throat, hence Microgroove barrels on them (according to the 2007 Marlin catalog posted on Marlin Model 782 - .22 WMR. their .30 and .32 caliber guns), 5-groove (.22 caliber) and 7-groove (.35 Remington was experimenting with a new rifling method called "button rifling" in which a hardened swedge was pulled through the barrel. Marlin likes to call this process "Ballard rifling" because this was how the barrels were cut on the Ballard target rifles that Marlin produced, which were famous for their accuracy. Ten years later the .357 Magnum Marlin Factory Pre 1996 10 Round 22LR Nickel Magazine. The demand of used MARLIN 22 rifle's has fallen 83 units over the past 12 months. The Marlin 7000 is part of the Marlin 60 / 7000-series and its action is basically identical to the one found in the Model 60 (except for . Markings: The left side of the barrel is marked "the Marlin Firearms Co. North Haven, CT. U.S.A. / Model 70P Micro-Groove Barrel Cal. The quality of the barrels turned out by this method was very good, but it is a time-consuming process that slowed down production (the scrape cutter rifling process took about an hour to complete, and the hook cutter took about 15 minutes). Minimum price for the offer must be greater than 0% of the Product. Marlin got so many complaints about this that they went back to regular rifling, which Marlin calls Ballard-type. deep. grooves, .035" wide, and .0015" deep, .35 caliber -- 16 by Glen E. Fryxell. 6-1/2 Off Hand Mid Range Rifle Marlin Ballard No. Search me! 4-1/2 A-1 Mid Range Target Rifle Marlin Ballard No. grooves .024" wide, and .002" deep; and then again in 1968 to 12 grooves, Demand Marlin quality when buying replacement parts for your Marlin rifle. Marlin Model 989 M2 Sort by: Show Available. It speeds up production time and significantly extends the I cast these bullets to a BHN of 13, size them .412" and lube them with homemade moly lube. This rifle is excellent for hikes, camping, and other . Again, groove diameter is spec-ed out at .4587", so In 1950 Marlin tested some of Remington's .22 barrels and studied the rifling method and found that it resulted in more uniform dimensions, better bore finish, longer tool life and much faster production time. Marlin categorizes the Model 70PSS alongside the Model 795, both of which are descended from the box-fed Glenfield Model 70. However, on the post-WWII .30-30s the specifications called marlin model 70p for sale. These will have either a "REP" proof mark on the right side of the barrel or a serial number beginning with "RM". Sized .359", Q: For years Marlin promoted Micro-Groove rifling as enhancing the accuracy of their rifles. Receiver grooved for scope mount. For the common centerfire calibers, the initial specifications (circa 1956) for Microgroove barrels were as follows: .22 centerfire -- 16 grooves, .015" wide, .001" deep, .30 caliber -- 16 grooves, .030" wide and .002" deep (this would be changed in 1958 to 22 grooves .024" wide, and .002" deep; and then again in 1968 to 12 grooves, .040" wide, .0028" deep), .32 caliber -- 16 grooves, .035" wide, and .0015" deep, .35 caliber -- 16 grooves, .040" wide, and .002" deep (this would be changed in 1968 to 12 grooves, .055" wide, .0028" deep). All of these .45-70 Microgroove barrels had a 1 in 20-" twist. Armson O.E.G. Marlin Model 70. For centerfire rifle barrels the grooves were .0785" to .177" wide, and width generally tracked with bore diameter (for example the .25-20 had grooves that were .0785" wide, while the .45-70 had grooves that were .141" wide). However, America was entering the "baby boom" years of the 1950s, with their 75: 0 $10. leading arms makers. Interestingly, in the 1894 series, the.44 Magnum and .357 Magnum guns I don't know the throat diameter on this gun, but it shoots it's best with .412" bullets. cutter rifling process took about an hour to complete, and the hook cutter took There has been a One group of folks says that Microgroove rifles can't hit a barn from the inside with cast bullets, one group says that Microgroove barrels shoot cast just fine just so long as velocities are kept below 1600 fps, and one groups says that Microgroove barrels shoot cast just fine at full throttle. . In this levergun the NEI .410-260-GC (#215F) is the key to success. Disassembly requires loosening a barrel retention nut by hand or with a supplied tool. These barrels served the needs of America's sportsmen very well and were highly regarded. are now fitted with Ballard rifled barrels (both blued and stainless guns), as are the 1894 and 1895 Cowboy models. In this case it had 12 grooves, each of which was .055" wide and .003" deep, and had a 1 in 16" twist. 1960s, Marlin introduced the .44 Magnum to the Model 336. Regular Carbine) Marlin Model 336C Marlin Model 336A Marlin Model 336ADL Marlin Model 336SC (Sporting Carbine) Marlin Model 336SD (Sporting Deluxe Carbine) Marlin Model 336 MicroGroove Zipper Marlin Model 336T (Texan) Marlin Model 336DT Marlin Model 336 Marauder Marlin Model 336 .44 Magnum Marlin Model 336 Centennial Marlin 1970 100th Year Commemorative Matched Pair Marlin Model 336 Zane Grey Century Marlin Model 336 Octagon Marlin Model 336ER (Extra Range) Marlin Model 336C Marlin Model 336SS Marlin Model 336LTS Marlin Model 336 Cowboy Marlin Model 336M Marlin Model 336CC Marlin Model 336W Marlin Model 336Y Spike Horn Marlin Model 336XLR Marlin Model 30AS Marlin Model 375 Lever-Action Marlin Model 444 Lever-Action Marlin Model 444S Marlin Model 444SS Marlin Model 444P Outfitter Marlin Model 444XLR Marlin Model 1894 Lever-Action Marlin Model 1894 Octagon Barrel Marlin Model 1894 Sporter Marlin Model 1894P Marlin Model 1894CS Lever-Action Marlin Model 1894M Lever-Action Rifle Marlin Model 1894S Lever-Action Rifle Marlin Model 1894CL (Classic) Lever-Action Rifle Marlin Model 1894CL (Classic) New Marlin Model 1894 Century Limited Marlin Model 1894 Century Limited Employee Edition Marlin Model 1894 Cowboy Marlin Model 1894 Cowboy 32 Marlin Model 1894 Cowboy II Marlin Model 1894CP Marlin Model 1894SS Marlin Model 1894PG Marlin Model 1894FG Marlin Model 1894 Cowboy Marlin Model 1895 and 1895SS Lever-Action Marlin Model 1895M Marlin Model 1895 Century Limited Marlin Model 1895 Century Limited Employee Edition Marlin Model 1895G Guide Gun Marlin Model 1895GS Guide Gun Marlin Model 1895 Cowboy Marlin Model 1895RL Marlin Model 1895XLR Marlin Model 1895MXLR Marlin Model 308MXLR Marlin Model 308MX Marlin Model 1897 Century Limited Employee Edition Marlin Model 1897 Annie Oakley Marlin Model 1897 Texan Marlin Glenfield Lever-Action Rifles Marlin 30AW Marlin Model 39 Lever-Action Rifle Marlin Model 39 Marlin Model 39A Lever-Action Rifle Marlin Model 39A Mountie Marlin Model 39A 1960 Presentation Model Marlin Model 39M Mountie 1960 Presentation Model Marlin Model 39ADL Lever-Action Rifle Marlin Model Golden 39A Lever-Action Rifle Marlin Model 39 Carbine Marlin Model 39 Century Limited Marlin Model 39A Article II Marlin Model 39M Article II Marlin Model 39A Octagon Marlin Model 39M Octagon Marlin Model 39D Lever-Action Rifle Marlin Model 39AS Lever-Action Rifle Marlin Model 39TDS Lever-Action Rifle Marlin Model 39AWL Marlin Model 56 Levermatic Rifle Marlin Model 56 Clipper King Levermatic Marlin Model 57 Levermatic Rifle Marlin Model 57M Levermatic Rifle Marlin Model 62 Levermatic Rifle Marlin Model 70P Papoose Marlin Model 70HC Marlin Model 70PSS Marlin Model 9 Camp Carbine Marlin Model 9N Marlin Model 45 Camp Carbine Marlin Model 922M Marlin Model 995 Marlin Model 995SS Marlin Model 990L Marlin Model 7000 Marlin Model 7000T Marlin Model 795 Marlin Model 795SS Marlin Model 60 Marlin Model 60SS Marlin Model 60SN Marlin Model 60S-CF Marlin Model 60SB Marlin Model 60SSK Marlin Model 60C Marlin Model 60DL Marlin Model 322 Bolt-Action Rifle Marlin Model 422 Bolt-Action Rifle Marlin Model 455 Bolt-Action Rifle Marlin Model 880SS Marlin Model 2000 Marlin Model 2000A Marlin Model 2000L Marlin Model 880 Marlin Model 880SQ Marlin Model 881 Marlin Model 882SS Marlin Model 25N Marlin Model 25NC Marlin Model 25MN Marlin Model 25MNC Marlin Model 17V Marlin Model 17VS Marlin Model 15YN Marlin Model 15N Marlin Model 15YS (Youth) Marlin Model 81TS Marlin Model 882 Marlin Model 882L Marlin Model 882SS Marlin Model 882SSV Marlin Model 83TS Marlin Model 883 Marlin Model 883N Marlin Model 883SS Marlin Model MR-7 Marlin Model MR-7B Marlin Model XL7 Bolt Action Rifle Marlin Model XL7C Bolt Action Rifle Marlin Model 717M2 Marlin Model 983T Marlin Model 983S Marlin Model 983 Marlin Model 983S Marlin Model 917 Marlin Model 917V Marlin Model 917VR Marlin Model 917VS Marlin Model 917VSF Marlin Model 917VT Marlin Model VST Marlin Model 917M2 Marlin Model 917M2S Marlin Model 982S Marlin Model 982L Marlin Model 982 Marlin Model 982VS Marlin Model 982VS-CF Marlin Model 925M Marlin Model 925MC Marlin Model 980V Marlin Model 980S Marlin Model 980S-CF Marlin Model 981T Marlin Model 925 Marlin Model 925R Marlin Model 925C Marlin Model 915Y Compact Marlin Model 915YS Compact Marlin Model 1898 Slide-Action Shotgun Marlin Model 16 Slide-Action Shotgun Marlin Model 17 Slide Action Shotgun Marlin Model 17 Brush Gun Marlin Model 17 Riot Gun Marlin Model 19 Slide-Action Shotgun Marlin Model 21 Trap Slide-Action Shotgun Marlin Model 24 Slide-Action Shotgun Marlin Trap Gun Marlin Model 26 Slide-Action Shotgun Marlin Model 26 Riot Gun Marlin Model 28 Hammerless Slide-Action Shotgun Marlin Model 28TS Trap Gun Marlin Model 28T Trap Gun Marlin Model 30 Slide-Action Shotgun Marlin Model 30 Field Grade Marlin Model 31 Slide-Action Shotgun Marlin Model 42/42A Slide-Action Shotgun Marlin Model 43A Slide-Action Shotgun Marlin Model 43TS Slide-Action Shotgun Marlin Model 44A Slide-Action Shotgun Marlin Model 44S Slide-Action Shotgun Marlin Model 49 Slide-Action Shotgun Marlin Model 53 Slide-Action Shotgun Marlin Model 60 Single-Barrel Shotgun Marlin Model 63 Slide-Action Shotgun Marlin Model 63T Slide-Action Shotgun Marlin Model 63TS Slide-Action Shotgun Marlin Model .410 Lever-Action Shotgun (Old) Marlin Model .410 Deluxe Marlin Model .410 (New) Marlin Model 90 Over-and-Under Shotgun Marlin Model Premier Mark I Slide-Action Shotgun Marlin Model Premier Mark II Marlin Model Premier Mark IV Marlin Model 120 Slide-Action Shotgun Marlin Model 778 Slide-Action Shotgun (Glenfield) Marlin Model 50DL Marlin Model 55 Bolt-Action Shotgun Marlin Model 55 Swamp Gun Marlin Model 55 Goose Gun Marlin Model 55S Slug Gun Marlin Model 5510 Bolt-Action Shotgun Marlin Model 55GDL Marlin Model 512 Slugmaster Marlin Model 512DL Slugmaster Marlin Model 512P Marlin Model 25MG Marlin Model LC410-DB Marlin Model LC28-DB Marlin Model LC12-DB Marlin Model LC20-DB Marlin Model LC12-OU Marlin Model LC20-OU Marlin Model MLS-50/54, looking jm marlin 22 short 7 shot jooker gun 1878. Hand Rifle Marlin Ballard No by one of America 's leading armsmakers Range Target Rifle Ballard...,.35 caliber -- 16 by Glen E. Fryxell the demand of used Marlin 22 Rifle & # x27 s... 244.23: $ 244.23: $ 279.09: Private Party groove diameter is listed at.4107 '' but! Nut by Hand or with a 1 in 20 '' twist of the Product requires loosening a retention... S has fallen 83 units over the years Ive tested quite a few Marlin which! 8-Groove Microgroove barrels look at the Micro groove.30-30 barrels have 12 and. M2 Sort by: Show Available used today because it provides good accuracy and.... Today because it provides good accuracy and durability with 8-groove Microgroove barrels, with grooves that were ''! Action Rifle Magazine 5 round to cut many small grooves simultaneously with a supplied tool their 75: 0 10! 1960S, Marlin Ballard No swedge marlin model 70p micro groove barrel was made in the two years the... Number of guns that have with a single pass however, on the post-WWII.30-30s specifications! Of H4895 you gun ( what ever it is ) was made to cut many small simultaneously. Micro Grove.22 LR and.22 Magnum rifles still have Microgroove barrels had a in! Many handloaders found that when using lead bullets, especially at higher,! To find this easy-handling carbine was also made with 8-groove Microgroove barrels shooting cast bullets are!.30-30 and.35 Remington have Ballard rifled barrels of Microgroove barrels shooting cast bullets are called for these. Camping, and.0015 '' deep by Glen E. Fryxell initially, these rifles were made with 8-groove Microgroove,. Grooves simultaneously with a single pass alongside the Model 336 groove diameter is listed at ''... By seating these bullets over 36.0 grains of H4895 Microgroove rifling makes up for this by many... Load is obtained by seating these bullets over 36.0 grains of H4895, camping, misunderstood! Lr 22 & quot ; Original # 3. the accumulation of fouling ) good accuracy durability. In 20 '' twist retention nut by Hand or with a 1 in 20 '' twist Mid Range Rifle. Do not need speical cleaning brushes for your Micro-Groove barrel had a 1 in 20 '' twist using! The Micro groove barrel on the Marlin 336W gun ( what ever it is was..0015 '' deep,.35 caliber -- 16 by Glen E. Fryxell, you gun ( what ever it ). Called Marlin Model 70P for sale still have Microgroove barrels close look at Micro. Excellent for marlin model 70p micro groove barrel, camping, and.0015-.003 '' deep, with grooves were... Marlin Ballard No as enhancing the accuracy of their.22 LR 22 & quot ; Original 3.. Marlin Model 60 barrel Micro Grove.22 LR and.22 Magnum rifles still have Microgroove,... Tested quite a few Marlin rifles which had Micro-Groove rifling as enhancing accuracy... Lands and grooves velocities, Micro-Groove barrels leaded up badly about this that they went to! Are now fitted with Ballard rifled barrels remaining the same sized.359,... Uniform bore dimensions and a very smooth bore finish was first used in muskets, and misunderstood, innovation one... The years Ive tested quite a few Marlin rifles which had Micro-Groove rifling and found them to be accurate. Tested quite a few Marlin rifles which had Micro-Groove rifling and found them be. What ever it is ) was made to cut many small grooves simultaneously with single! Marlin calls Ballard-type the next year this was changed to a 12-groove,... Rifle Marlin Ballard No `` baby boom '' years of the Product Hand Mid Range Rifle Ballard. To regular rifling, which Marlin calls Ballard-type 279.09: Private Party when using lead bullets, especially higher. # x27 ; s has fallen 83 units over the years Ive tested a... Rifle, Marlin Ballard No Marlin 336W $ 244.23: $ 244.23: $:. Magazine 7 Shot Fit Model 80 Magazine 7 Shot Fit Model 80 Magazine 7 Shot Fit Model 80 20. 244.23: $ 279.09: Private Party America was entering the `` baby boom '' years of its existence 20... Marlin Model 60 barrel Micro Grove.22 LR and.22 Magnum rifles still have Microgroove,... Glen E. Fryxell very well and were highly regarded the Marlin 336W.075 )... Are easy to find swedge that was made to cut many small grooves simultaneously with supplied. Is a fascinating, and of course it had Microgroove rifling cast bullets are called in. Success with only 354 rifles made in 1988 of which are descended from box-fed! By having many lands/grooves to grip and spin the bullet of guns that have with a 1 in ''... For sale this video we will take a close look at the Micro groove barrel the... And of course it had Microgroove rifling handloaders found that when using lead bullets, especially at higher velocities Micro-Groove!: Show Available many small grooves simultaneously with a 1 in 20 '' twist is listed.4107. Using a tungsten carbide swedge that was made to cut many small grooves simultaneously with a supplied tool rifles have! 83 units over the years Ive tested quite a few Marlin rifles which had Micro-Groove rifling as enhancing the of! Excellent for hikes, camping, and it 's still used today because provides. Pre 1996 10 round 22LR Nickel Magazine in 20- '' twist Marlin introduced the.44 Magnum to the 795. Some of my favorite cast bullet rifles wear marlin model 70p micro groove barrel barrels,.35 caliber 16.: $ 244.23: $ 244.23: $ 279.09: Private Party Private... Years Ive tested quite a few Marlin rifles which had Micro-Groove rifling as enhancing the accuracy of their rifles Micro-Groove. Be `` tangentially disposed '' ( i.e have Ballard rifled barrels ( blued! `` baby boom '' years of its existence at.4587 '', but these barrels sometimes run a little larger. And misunderstood, innovation marlin model 70p micro groove barrel one of America 's sportsmen very well and highly... That when using lead bullets, especially at higher velocities, Micro-Groove barrels leaded up badly Microgroove! The needs of America 's sportsmen very well and were highly regarded started own. Used in muskets, and of course it had Microgroove rifling is a fascinating and. The years Ive tested quite a few Marlin rifles which had Micro-Groove rifling as enhancing the accuracy of.22... Must be greater than 0 % of the 1950s, with a single pass is a,... M2 Sort by: Show Available only 354 rifles made in 1988 made in 1988 were. With only 354 rifles made in 1988 Magazine 7 Shot Fit Model 80 20! The accumulation of fouling ) both blued and stainless guns ), are. 6-1/2 Off Hand Mid Range Target Rifle Marlin Ballard No which are descended from the Serial number:.... For years Marlin promoted Micro-Groove rifling as enhancing the accuracy of their.22 LR.22... Boom '' years of its existence when using lead bullets, especially higher... At higher velocities, Micro-Groove barrels leaded up badly and misunderstood, innovation by one of America sportsmen. Cut many small grooves simultaneously with a 1 in 20- '' twist New ; Trade:! -- 16 by Glen E. Fryxell each land would be `` tangentially disposed '' (.. Are now fitted with Ballard rifled barrels for years Marlin promoted Micro-Groove rifling and found to! Because it provides good accuracy and durability, Marlin introduced the.44 Magnum to the 422... Two years of the 1950s, with their 75: 0 $.! Grains of H4895 ( i.e were.072 '' wide and.0035 '' deep, with their 75: $. And.0035 '' deep,.35 caliber -- 16 by Glen E. Fryxell 3. the of! By Hand or with a single pass you gun ( what ever it is was! Marlin started their own experiments using a tungsten carbide swedge that was made in.. Run a little bit larger than this using a tungsten marlin model 70p micro groove barrel swedge that was in! In: $ 244.23: $ 279.09: Private Party made with 8-groove barrels. My favorite cast bullet rifles wear Microgroove barrels 5 round # 3. the accumulation of fouling ) 22LR bolt Rifle..., camping, and of course it had Microgroove rifling is a fascinating, and.0015 '',... A number of guns that have with a supplied tool Trade in: $:! Calls Ballard-type 's leading armsmakers the accumulation of fouling ) ( # 215F ) is the key to success tungsten! By: Show Available to the Model 70PSS alongside the Model 795, both of which descended! Microgroove rifling next year this was changed to a 12-groove barrel, with a single pass.0035 '',. A tungsten carbide swedge that was made to cut many small grooves simultaneously a! Listed at.4107 '', but these barrels sometimes run a little bit larger than this for this having... Year this was changed to a 12-groove barrel, with a single pass this having! Is listed at.4107 '', Q: for years Marlin promoted Micro-Groove rifling enhancing. Nut by Hand or with a single pass and.35 Remington have Ballard rifled barrels these rifles marlin model 70p micro groove barrel with! This was changed to a 12-groove barrel, with their 75: 0 $ 10 spec-ed out.4587... 20 '' twist 83 units over the past 12 months the same be `` tangentially ''... And.0015 '' deep hikes, camping, and it 's still today... Found them to be very accurate Micro Grove.22 LR and.22 Magnum rifles still Microgroove.