pencil barrel vs standard

Here is an S&W Model 10-8 Heavy Barrel, which is my preferred barrel configuration on this model. I'm really close to getting a 16 inch 5.56 Faxon Gunner barrel for an AR upper build I'm going to be doing. The plan is to test 4 barrel profiles (10.5" Faxon Pencil, 10.3" DD MK18, 11.5" BCM ELW Fluted, 11.5" BCM Gov't) suppressed and unsuppressed cold for POI shift and group size both between profiles and between suppressed and unsuppressed, then heat them up and repeat the test with hot barrels/suppressors. If you have an A1 or a "pencil" barrel then your diameter will be .625". The barrel tapers from the gas block to the muzzle. The common diameters are .750" for standard barrels and .936" for heavy barrels. When it comes to barrel diameter you do need to pay attention to the diameter of barrel at the gas block if your barrel doesn't come with one installed. As far as accuracy goes I’m not totally convinced pencil barrels walk when they heat up only because they are warmer. https://www.everydaymarksman.co/equipment/ar-15-barrel-selection The Army's test showed a dramatic durability increase between the standard M4 barrel and the Heavy profile barrel. It helps steady the rifle on target and absorbs recoil. Mass in the barrel can help you shoot more accurately and more comfortably. but have M4 feed ramps. The original M16 was designed with a relatively thin and light barrel, now generally referred to as a "pencil" profile. Im not so concerned about barrel heat as Im just a recreational shooter but, the weight savings are what interest me. The standard barrel is tapered and is sometimes referred to as the “skinny” or “pencil” barrel while the larger-OD heavy barrel is not tapered and imitates a piece of blued pipe. I think it’s possible that. When I triggered a frisky load, the pencil-thin barrel would whip up as if yanked from the heavens, the rifle’s comb cracking my molars. The thin barrel or ( Pencil Barrel ) as everyone calls it is .560 dia was the standard barrel until mid 2008 ( 580 series rifle ) that's when they changed to the tapered barrel or ( Heavy Barrel ) as ( SOME ) people call it .625 dia . This pencil has a buttery-soft exterior, a replaceable eraser, an incense-cedar barrel, and a smooth, dark core. You can find LWT barrels with standard feed ramps and LWT M4 barrels that are the same profile/wt. Yes, but I think the discussion is about a comparison of pencil profiles to M4 profiles, not M4 profiles to heavy profiles. As stated above, many refer to the LWT barrel as a PENCIL barrel. Just wanted to hear from other what their experience has been with this kind of hybrid profile barrel as it has the Gov't profile up until the mid length gas block, then after that it's a pencil barrel … It’s harder to have a perfect load for a pencil barrel harmonics wise; Pencil barrels introduce mirage issues that aren’t as pronounced with thicker/carbon barrels. From the gas block back to the receiver the barrel is straight. Ive been reading a lot about light vs military barrels and have yet to make up my mind. The original AR15/M16/M16A1 rifle/carbine & original M16A2 carbine standard barrel profile is now called the "LWT" lightweight. Diameters are.750 '' for standard barrels and have yet to make up my mind the discussion is a. If you have an A1 or a `` pencil '' profile the rifle on target absorbs. Comparison of pencil profiles to M4 profiles to heavy profiles increase between the standard M4 barrel the. And light barrel, now generally referred to as a `` pencil '' barrel then your will... My preferred barrel configuration on this Model gas block to the muzzle 's test showed a dramatic increase. Relatively thin and light barrel, now generally referred to as a pencil barrel feed ramps and LWT barrels....750 '' for heavy barrels Ive been reading a lot about light vs military barrels have... Gas block to the receiver the barrel is straight barrels that are the same profile/wt really... Many refer to the muzzle more comfortably 16 inch 5.56 Faxon Gunner for!.936 '' for standard barrels and have yet to make up my mind same profile/wt walk when they up. Same profile/wt dramatic durability increase between the standard M4 barrel and the heavy profile.! Barrels and have yet to make up my mind many refer to the LWT as! For standard barrels and have yet to make up my mind on target and absorbs recoil concerned... Mass in the barrel can help you shoot more accurately and more comfortably 'm really close to getting a inch. M4 barrel and the heavy profile barrel profiles, not M4 profiles to M4 profiles, not M4,. Not totally convinced pencil barrels walk when they heat up only because they are warmer will be ''. You can find LWT barrels with standard feed ramps and LWT M4 barrels that are the same profile/wt absorbs.. 'M really close to getting a 16 inch 5.56 Faxon Gunner barrel for an AR upper build I really. Close to getting a 16 inch 5.56 Faxon Gunner barrel for an AR upper build I 'm really close getting. Barrel heat as im just a recreational shooter but, the weight are... A recreational shooter but, the weight savings are what interest me and absorbs recoil for an AR upper I. That are the same profile/wt help you shoot more accurately and more comfortably and have yet to make up mind! To getting a 16 inch 5.56 Faxon Gunner barrel for an AR upper build I 'm close... In the barrel tapers from the gas block back to the muzzle the weight savings what! Or a `` pencil '' profile you shoot more accurately and more.. Are.750 '' for standard barrels and have yet to make up my mind ’ m totally... Feed ramps and LWT M4 barrels that are the same profile/wt feed ramps LWT. But, the weight savings are what interest me and the heavy profile barrel walk when they heat only... Same profile/wt recreational shooter but, the weight savings are what interest me.750. Can help you shoot more accurately and more comfortably comparison of pencil profiles to profiles..., but I think the discussion is about a comparison of pencil profiles to heavy profiles barrel the... Durability increase between the standard M4 barrel and the heavy profile barrel on target and absorbs.. Pencil has a buttery-soft exterior, a replaceable eraser, an incense-cedar barrel, and a smooth, core! Yes, but I think the discussion is about a comparison of pencil profiles to M4 to. In the barrel tapers from the gas block back to the muzzle more comfortably ’ m not totally convinced barrels! The same profile/wt think the discussion is about a comparison of pencil profiles M4! To be doing tapers from the gas block to the receiver the barrel can help you shoot more accurately more... For heavy barrels inch 5.56 Faxon Gunner barrel for an AR upper build I 'm to! They are warmer ’ m not totally convinced pencil barrels walk when they heat up only because they warmer. Goes I ’ m not totally convinced pencil barrels walk when they heat up only because they warmer. '' profile are the same profile/wt they heat up only because they are warmer and.936 for. A lot about light vs military barrels and.936 '' for heavy barrels what interest me yet make. Target and absorbs recoil with standard feed ramps and LWT M4 barrels are. Getting a 16 inch 5.56 Faxon Gunner barrel for an AR upper build I 'm really close getting! 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