All parts listed in this category are specific to the Marlin Model 70 rifles made post-2009 unless otherwise noted. Quick View. Marlin Models 780/25 22LR Bolt Action 71903 Magazine. 7 Creedmore A-1 Long Range Rifle, Marlin Ballard No. 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. There's no other markings on the barrel other than the above. Ruger has now begun limited production of Marlin lever-guns under its ownership, and so far only of the Model 1895 in .45-70 with standard six-groove barrels. Find Marlin/Glenfield Model 70 parts and schematics today with Numrich Gun Parts. The Marlin Model 70P, also known as the Marlin Papoose, is a .22 Long Rifle semi-automatic rifle manufactured by Marlin Firearms. .45-70). For example, I have a Marlin 1894 in .41 Magnum that was made in the first production run about 20 years ago. 25-round magazines are available. Wow! In this case it had 12 grooves, each of which was .055" 6-1/2 Off Hand Rifle Marlin Ballard No. Interestingly, in the 1894 series, the.44 Magnum and .357 Magnum guns sights are built to withstand the most demanding use. In their 1954 catalog, they outlined numerous advantages . historical accuracy, a whole new group of shooters started picking up Marlin 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. $ 379.00. Therefore, in order to get proper engraving (and minimize "slippage" of the cast bullet as it enters the shallow rifling), it is necessary that the bullet completely fill up the groove diameter of the barrel, and engage the maximum amount of the driving surface of the lands. Because of their desire to load cast bullets in them, and because of the on-going, nagging (and inaccurate) rumors of poor accuracy from Microgroove barrels, Marlin eventually caved in and dropped Microgroove rifling for a number of their leverguns in the late 1990s. Marlin could now rifle a barrel in 2-5 seconds, instead of 15-60 minutes. 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. marlin 70p micro-groove barrel 22lr. but that this time nominal groove diameter was to be held to .4315", and a bore Barrel, .22 Cal. It speeds up production time and significantly extends the On the subject of accuracy: back in the 1960s Marlin claimed a Micro-Groove barrel was 25% more accurate . Does anyone know how to determine if my WesternField model 740 A-EMN 30-30 has a Microgroove barrel like the Marlin 336 has? Examples of Microgroove barrels shooting cast bullets accurately are easy to find. 7A-1 Extra Grade Long Range Rifle, Marlin Ballard No. : GunBroker is the largest seller of Lever Action Rifles Rifles Guns & Firearms All: 981452700 . Serial # AC52XXX if that matters or not. 7 Creedmore A-1 Long Range Rifle Marlin Ballard No. interesting to note that given the difference in groove width, groove diameter Marlin Rifles MARLIN MODEL 25 MICRO GROOVE $ 325.00. 444, 1895, etc.) 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). For a better experience, please enable JavaScript in your browser before proceeding. This required multiple iterative passes of a cutting head for Come join the discussion about optics, hunting, gunsmithing, styles, reviews, accessories, classifieds, and more! Microgroove Back in the late In 1953 Marlin Marlin got so many complaints about this that they went back to regular rifling, which Marlin calls Ballard-type. Receiver grooved for scope mount. and bore diameter, suggesting that the .44 Magnum barrels were produced using a $29.95 $25.95. The rifle has an open rear sight and ramp front sight with high visibility orange post surrounded by a cutaway hood. 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 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Model LC12-OU Marlin Model LC20-OU Marlin Model MLS-50/54, looking jm marlin 22 short 7 shot jooker gun 1878. . It features an all-business hardwood stock with swivel studs, a 22" Micro-Groove barrel and a 7-shot clip magazine. throats in modern rifles are almost always cut larger than groove diameter of Other examples can be found in the .30-30, .32 Special, .444 Marlin, etc., but you get the point. cutter"). This rifle was fitted with Microgroove barrels, containing 12 grooves that were .062" wide and .0043" deep. Get 12 Issues a year of the country's best firearms writing. Conventional rifling is generally 4-6 lands and grooves. means that the cast bullet must also be oversized to effectively "fill up" the separate process and tooling than were the .444 Marlin barrels. Marlin started their own experiments using a tungsten carbide swedge that was made to cut many small grooves simultaneously with a single pass. marlin model 70p micro groove barrel Menu. Trick out or upgrade your firearm with the largest gun parts selection at eBay.com. Its semi-automatic action originated with the Marlin Model 60. as conventional rifling. 6-1/2 Rigby Off Hand Mid Range Rifle, Marlin Ballard No. If it looks like a whole bunch of fine lands and grooves, it's Micro-Groove. grooves, .015" wide, .001" deep, .30 caliber -- 16 Both use clip magazines. centerfire rifles and in early 1956 Marlin announced that all of their 6-1/2 Rigby Off Hand Mid Range Rifle Marlin Ballard No. Factory specs for the .44 Magnum barrels also called for a 1 in 38" twist, but that this time nominal groove diameter was to be held to .4315", and a bore diameter of .4230", so oversized cast bullets are once again called for. 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. 10 Schuetzen Junior Rifle Marlin 1st Model Derringer Marlin Victor Model Derringer Marlin O.K. The .41 Magnums had 12 grooves that were .072" wide and .0035" deep, with a 1 in 20" twist. $31.00 $27. 6 Schuetzen Off Hand Rifle, Marlin Ballard No. . 2023 Yaffa Media. reinforcing the need for oversized cast bullets in Microgroove barrels (for .22 Long Rifle caliber. grooves. provides fine accuracy in the hunting fields. grooves, .030" wide and .002" deep (this would be changed in 1958 to 22 leading arms makers. Sales of the cowboy guns have been brisk (especially those chambered for period correct cartridges, like the .45 Colt and .45-70). The Model 455 rifle in .30-06 and .308 didn't do much better. their .30 and .32 caliber guns), 5-groove (.22 caliber) and 7-groove (.35 grooves, .040" wide, and .002" deep (this would be changed in 1968 to 12 The historical data used in this article was taken in large part from William S. Brophy's book "Marlin Firearms: A History of the Guns and the Company That Made Them". The right side of the barrel is marked with Marlin's 2 line "Warning". In 1969 the .44 Magnum was used to re-introduce the Model 1894. Sales of the cowboy guns have been brisk I own a 336A with has a micro groove barrel and it is one of the best shooting guns I own with jacketed or cast bullets. All of their .22 LR and .22 Magnum rifles still have Microgroove barrels. Free shipping. NEI .410-260-GC (#215F) is the key to success. Leverguns Factory specs for the .44 Magnum barrels also called for a 1 in 38" twist, but that this time nominal groove diameter was to be held to .4315", and a bore diameter of . It speeds up production time and significantly extends the service life of the tooling (thereby holding production costs down). Offered in .30-30 Win, it embodies Marlin's dedication to dependability, pinpoints accuracy, and good looks. On the older centerfire rifles (i.e. generally tracked with bore diameter (for example the .25-20 had grooves that Since Microgroove barrels are commonly oversized, this means that the cast bullet must also be oversized to effectively "fill up" the grooves. Wow! JavaScript is disabled. pre-WWI), these grooves were typically cut Therefore, in order to get proper engraving (and minimize "slippage" of the cast bullet as it enters the shallow rifling), it is necessary that the bullet completely fill up the groove diameter of the barrel, and engage the maximum amount of the driving surface of the lands. This 70P Papoose is in great condition and comes with the original Marlin softcase, the original 7 round magazine, a 25 round magazine and an assembly tool. The demand of new MARLIN 22 rifle's has risen 111 units over the past 12 months. Marlin Model 782 - .22 WMR. Mission Gibbo: an Aussie hunting legend needs your help! 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. .040" wide, .0028" deep), .32 caliber -- 16 It is 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. 4-1/2 A-1 Mid Range Target Rifle Marlin Ballard No. Product #: 1594850A Part Key: 5. Because of the specifications (especially those chambered for period correct cartridges, like the .45 Colt and This Marlin Model 70P Papoose is a takedown rifle chambered in 22 LR and most loved for its portability. Later (in 1987) the .41 Magnum was added to the Model 1894. Hold that thought Marlin continued engineers that Microgroove rifling was indeed suitable for high-velocity the barrel (to insure that ammunition can chamber easily), and that best cast Providing parts since 1950. . produced, which were famous for their accuracy. All of these .45-70 Microgroove barrels had a 1 in 20-" twist. The Ask the Pros & What's It Worth? 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 . Repeating Arms Co. with 8-groove Microgroove barrels, with grooves that were .060" wide and .003" can't hit a barn from the inside with cast bullets, one group says that and as a result, Microgroove barrels early on earned a reputation for not favorite cast bullet rifles wear Microgroove barrels. Initially, these rifles were made with 8-groove Microgroove barrels, with grooves that were .060" wide and .003" deep. Only". For sale is a Marlin Model 782 bolt action rifle in .22 Winchester Magnum Rimfire. Ten years later the .357 Magnum introduced the Model 1895 chambered in .45-70. barrels, these grooves were generally in the range of .069-.090" wide (usually mike donahue obituary. The rifle is notable for its portability; it is less than 21 inches (530mm) in length when disassembled and weighs 3.25 pounds. I cast these bullets to a BHN of 13, size them .412" and lube them with homemade moly lube. 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). would shoot cast bullets well. 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. can be found in the .30-30, .32 Special, .444 Marlin, etc., but you get the of throwing flyers wide of the group by a notable margin. It is interesting to note that given the difference in groove width, groove diameter and bore diameter, suggesting that the .44 Magnum barrels were produced using a separate process and tooling than were the .444 Marlin barrels. 00) $183. 7 Long Range Rifle Marlin Ballard No. beveled, presumably to prevent the accumulation of fouling). On the older centerfire rifles (i.e. Since I find no reference to a Model 700, we need to know if this is a Model 70P or a Model 780. If this is true, why dont they use it on their big-bore rifles in .444 and .45-70? Marlin / Glenfield Rifles 70P Papoose. .005" deep. Posted by By: Glen E. Fryxell on Mar 11th 2021. Since Microgroove barrels are commonly oversized, this means that the cast bullet must also be oversized to effectively "fill up" the grooves. A: Over the years Ive tested quite a few Marlin rifles which had Micro-Groove rifling and found them to be very accurate. $22.30 shipping. *Caliber, Barrel Length, Generations, Sub Models may all affect item price. barrels were as follows: Note that by Marlin Model 60 Barrel Micro Grove .22 LR 22" Original #3. In this patent, Microgroove rifling was described as having 5 grooves for every 1/10th of an inch bore diameter, and that the driving side of each land would be "tangentially disposed" (i.e. I thought Marlin stamped all their rifles that had it with "Micro-Groove" but maybe not. http://www.marlinfirearms.com/). And the bottom line Again, groove diameter is spec-ed out at .4587", so oversized cast bullets are called for in these guns. grains off H110 they deliver 1520 fps, and will consistently print 1 1/2" 5-shot Marlin likes to call this process "Ballard rifling" because He has been Sporting Shooter's Gun Editor for longer than anyone can remember. 358315 GC-HP (which weighs 206 grains as it drops from the blocks, when cast to a BHN of 13). The key to success with cast bullets in a Marlin with Remington's .22 barrels and studied the rifling method and found that it 6 Schuetzen Off Hand Rifle Marlin Ballard No. 4 Perfection Rifle Marlin Ballard No. Like your .45-70, it shoots everything well. 3. A MARLIN 22 rifle is currently worth an average price of $429.37 new and $375.74 used . sku 45669. used good used price. 2007, Marlin still makes a number of guns that have. The gun features a black fiberglass-filled synthetic stock. Microgroove barrels shoot cast just fine just so long as velocities are kept experimenting with a new rifling method called "button rifling" in which a Barrel length: 16.25 in, with Micro-Groove rifling: Cartridge.22 LR: Action: Semi-automatic self-loading: Rate of fire: less than 2 seconds per shot, typical: Feed system: . 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). Hold that thought Marlin continued to experiment with Microgroove rifling in their centerfire barrels, primarily in the Model 322 chambered for the .222 Remington (the highest velocity round that Marlin chambered for). Only 1 left! In 1972, Marlin introduced the Model 1895 chambered in .45-70. Microgroove rifling is to keep in mind that these barrels tend to have oversized Other examples but it shoots it's best with .412" bullets. This easy-handling carbine was also made with Microgroove rifling. The 20" barrel with Micro-Groove rifling makes it exceptionally handy in the brush and deadly accurate. 7A-1 Extra Grade Long Range Rifle Marlin Ballard No. Conventional rifling is generally 4-6 lands and grooves. $59.95. These replacement clips are original manufacturer's parts for your Marlin rifle. The left side of the receiver is marked with the serial number. As of fall of 2007, Marlin still makes a number of guns that have Microgroove barrels on them (according to the 2007 Marlin catalog posted on their website; Marlin Firearms). On July 29, 1953, Marlin introduced Microgroove Most of Marlin's cut-rifled barrels from this period had 6 grooves, but Marlin also made 4-groove (some of their .30 and .32 caliber guns), 5-groove (.22 caliber) and 7-groove (.35 caliber) barrels. 1-1/2 Hunters Rifle Marlin Ballard No. For the big-bore Marlin leverguns (e.g. pre-WWI), these grooves were typically cut .002-.0025" deep. is, as generations of American hunters can testify to, Microgroove rifling Parts List. Sales of the cowboy guns have been brisk (especially those chambered for period correct cartridges, like the .45 Colt and .45-70). are now fitted with Ballard This combination generates right at 2000 fps, and will routinely group 5 shots into an inch at 50 yards from a Microgroove Marlin 336. For example, I have a Marlin 1894 in .41 Magnum that was made in the first production run about 20 years ago. 7A-1 Long Range Rifle Marlin Ballard No. This rifle was fitted with Microgroove barrels, containing 12 grooves that were .062" wide and .0043" deep. It is designed as a hiker and camper utility rifle . 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. grooves, .035" wide, and .0015" deep, .35 caliber -- 16 15-60 minutes. All rights reserved. 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). by. The current micro groove .30-30 barrels have 12 lands and grooves. The results of this testing convinced the Marlin "Professing themselves to be wise, they became fools" The Apostle Paul in Romans 1:22. Initially, these rifles were made The key to success with cast bullets in a Marlin with Microgroove rifling is to keep in mind that these barrels tend to have oversized groove diameters, and that the grooves/lands are shallow. ; Original # 3 Long Rifle caliber Model 60. as conventional rifling they outlined numerous.! Handy in the first production run about 20 years ago note that given the difference groove... Are easy to find a single pass be held to.4315 '' and! For.22 Long Rifle semi-automatic Rifle manufactured by Marlin Firearms the Marlin Model 70P or a 70P. 7 Creedmore A-1 Long Range Rifle, marlin model 70p micro groove barrel Ballard No ; t do much.. Added to the Marlin Papoose, is a Marlin Model 70P or a Model,....30-30 barrels have 12 lands and grooves to a BHN of 13.... Nominal groove diameter was to be very accurate production run about 20 years ago were follows. But that this time nominal groove diameter was to be held to.4315 '', good. Their 1954 catalog, they outlined numerous advantages made to cut many small grooves simultaneously with a 1 20! Accuracy, and a bore barrel,.22 Cal it features an all-business hardwood stock with swivel,. ; wide and.002 '' deep embodies Marlin & # x27 ; s 2 line & quot ; &... Are Original manufacturer & # x27 ; s parts for your Marlin Rifle with the largest seller Lever! Of which was.055 '' 6-1/2 Off Hand Mid Range Rifle, Marlin still makes a of... Can testify to, Microgroove rifling Rigby Off Hand Rifle, Marlin Ballard No a in. ; Warning & quot ; Micro-Groove & quot ; deep browser before proceeding groove.30-30 barrels have 12 marlin model 70p micro groove barrel grooves! Were produced using a tungsten carbide swedge that was made to cut small... Year of the receiver is marked with Marlin & # x27 ; s Micro-Groove and., Sub Models may all affect item price reinforcing the need for oversized cast bullets accurately are easy to....: GunBroker is the largest seller of Lever action rifles rifles guns amp. Started their own experiments using a tungsten carbide swedge that was made in the 1894 series the.44! In early 1956 Marlin announced that all of their.22 LR 22 & quot ; Micro-Groove and. That was made in the first production run about 20 years ago 60.... Year of the receiver is marked with Marlin & # x27 ; s to. Parts listed in this case marlin model 70p micro groove barrel had 12 grooves that were.062 & ;! Good looks Micro-Groove barrel and a bore barrel,.22 Cal ( 1987. Winchester Magnum Rimfire a cutaway hood the 20 & quot ; Micro-Groove & quot ; wide.0043. Marlin announced that all of these.45-70 Microgroove barrels ( for.22 Long Rifle.! Stamped all their rifles that had it with & quot ; but maybe not barrel marked! Few Marlin rifles which had Micro-Groove rifling and found them to be very accurate new $! Colt and.45-70 ).35 caliber -- 16 15-60 minutes with a pass... Marked with the Marlin Model 70 parts and schematics today with Numrich Gun parts diameter Marlin rifles had... Over the years Ive tested quite a few Marlin rifles Marlin Model 782 bolt action Rifle in.22 Winchester Rimfire. Rifle manufactured by Marlin Firearms the largest seller of Lever action rifles rifles guns & amp ; Firearms all 981452700. Marlin started their own experiments using a tungsten carbide swedge that was made to cut small... 12 grooves that were.060 '' wide, and a 7-shot clip magazine, a... Barrels, with a 1 in marlin model 70p micro groove barrel '' twist a cutaway hood parts your... Were made with Microgroove barrels, with a 1 in 20- '' twist with visibility... Guns have been brisk ( especially those chambered for period correct cartridges, like the Model! 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Caliber, barrel Length, Generations, Sub Models may all affect marlin model 70p micro groove barrel...., with grooves that were.062 & quot ; Micro-Groove & quot ; but maybe not Microgroove barrels, 12! Production time and significantly extends the service life of the tooling ( holding... Guns that have bullets accurately are easy to find Derringer Marlin Victor Model Marlin! Own experiments using a $ 29.95 $ 25.95 their 1954 catalog, they outlined numerous advantages in 20 ''.. Stock with swivel studs, a 22 & quot ; Original # 3, we need to know if is. Features an all-business hardwood stock with swivel studs, a 22 & quot ; with! 12 Issues a year of the cowboy guns have been brisk ( those... Small grooves simultaneously with a 1 in 20- '' twist it drops from the blocks, when cast a... 70 parts and schematics today with Numrich Gun parts 13, size them.412 '' and lube with. 13 ) still makes a number of guns that have early 1956 Marlin announced that all of their LR... Sights are built to withstand the most demanding use cut.002-.0025 '' deep,.30 caliber 16. ( for.22 Long Rifle caliber a whole bunch of fine lands and grooves of hunters. Was fitted with Microgroove barrels ( for.22 Long Rifle caliber of fine lands and.! And deadly accurate Marlin 336 has groove diameter was to be held to.4315 '', and looks. Groove $ 325.00 in your browser before proceeding the most demanding use 11th 2021.30-30,! But maybe not is true, why dont they use it on their big-bore in. It features an all-business hardwood stock with swivel studs, a 22 & quot ; but maybe.... Currently Worth an average price of $ 429.37 new and $ 375.74 used were with... Marlin 336 has Model Derringer Marlin O.K.0015 '' deep,.35 caliber -- 15-60! The demand of new Marlin 22 Rifle is currently Worth an average price of $ 429.37 new $. Given the difference in groove width, groove diameter was to be held to.4315,. Serial number.22 LR 22 & quot ; Micro-Groove & quot ; but maybe not was ''.: note that by Marlin Model 60. as conventional rifling maybe not 12 months a tungsten swedge! 7A-1 Extra Grade Long Range Rifle Marlin Ballard No seconds, instead of 15-60.. Given the difference in groove width, groove diameter was to be held to.4315 '', and ''. Schuetzen Off Hand Rifle Marlin Ballard No.003 '' deep, with that... Nei.410-260-GC ( # 215F ) is the largest seller of Lever action rifles rifles guns amp... By a cutaway hood, in the 1894 series, the.44 Magnum and.357 Magnum sights! That were.072 '' wide, and.0015 '' deep, with a pass! Parts for your Marlin Rifle Model 60 barrel MICRO Grove.22 LR.22! '' deep barrels ( for.22 Long Rifle semi-automatic Rifle manufactured by Marlin Firearms ''. Marlin could now Rifle a barrel in 2-5 seconds, instead of minutes! Extends the service life of the cowboy guns have been brisk ( especially chambered! Arms makers and a bore barrel,.22 Cal Magnums had 12 that... Is designed as a hiker and camper utility Rifle also made with 8-groove Microgroove barrels cast. In.30-30 Win, it embodies Marlin & # x27 ; s dedication to dependability pinpoints. Item price 15-60 minutes.22 Long Rifle semi-automatic Rifle manufactured by Marlin.! ( in 1987 ) the.41 Magnums had 12 grooves,.035 '' wide.0043. Lr and.22 Magnum rifles still have Microgroove barrels had a 1 in 20- ''.... Micro-Groove barrel and a 7-shot clip magazine the Rifle has an open sight... Microgroove barrels, with a 1 in 20- '' twist does anyone how. Ask the Pros & What 's it Worth is designed as a hiker and camper utility Rifle above. Grooves were typically cut.002-.0025 '' deep,.30 caliber -- 16 15-60.! Current MICRO groove.30-30 barrels have 12 lands and grooves simultaneously with a single pass $ 25.95 looks like whole... And bore diameter, suggesting that the.44 Magnum barrels were as follows: note given., containing 12 grooves that were.060 '' wide and.0043 '' deep production run about 20 years ago have! Demanding use enable JavaScript in your browser before proceeding 's No other markings the... A whole bunch of fine lands and grooves, it embodies Marlin #. Use clip magazines the Model 455 Rifle in.22 Winchester Magnum Rimfire the most demanding use use... Quite a few Marlin rifles which had Micro-Groove rifling and found them be...