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Posted: 1/7/2016 1:47:38 AM EDT
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I'd like some opinions on who makes the best weighted buffer system for a rifle length AR-10 in .308?
As usual all replies are greatly appreciated. |
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I purchased a buffer from heavybuffer.com.
The buffer is over 10 ounces and using the extra power spring purchased from the same place, the recoil difference is night and day. I use the buffer in a DPMS GII hunter. The recoil is more of a push than the bolt slamming back and then forward again. I also installed an Odin adj. gas block, with all working together, I think the recoil is closer to an AR-15. The recoil is comfortable on a shoulder ruined with arthritis. |
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Quoted:
Forgive my ignorance, as I'm new to the AR platform. What I was asking is which spring and buffer system best controls the recoil of the rifle and even helps improve accuracy? For RLGS using a .0935" gas port, we also need to know the barrel length and what loads you are shooting. |
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Quoted:
Forgive my ignorance, as I'm new to the AR platform. What I was asking is which spring and buffer system best controls the recoil of the rifle and even helps improve accuracy? The first thing I would recommend you do, If recoil is a concern, would be a good brake. A properly designed brake is the single best thing to actually counter the force of gas exiting the barrel, and truly reduce recoil, with the only tradeoffs being increased noise and flash perception being increased. There have been a lot of decorative muzzle devices come on the market, but the basic principles of physics haven't changed. A Miculek style brake is still one of the best at handling recoil forces that there is and are a lot cheaper than the flashy new pretty stuff. Then, before you start playing with buffer and/or carrier weights, you might want to familiarize yourself with how to evaluate your spent brass for your current system's timing, and consider an adjustable gas block before a weight change. Recoil can only be reduced to a certain point, and then when you start looking into the recoil system weight, it becomes a tradeoff in the impulse of it. So the next question would be, which aspect of recoil are you concerned with? Think of it like releasing the normal opening of a balloon, rather than poking it with a needle - the same amount of air and pressure is released from the balloon, the difference is the time over which that energy is released. Depending on whether you're trying to control muzzle movement, or the feeling of the punch into your shoulder. In the case of the AR, a higher moving mass creates more visibly perceived recoil in the form of muzzle movement as the higher mass cycles back and forth causing the weapon to rock like a playground see-saw. It reduces the feeling of the recoil impulse in your shoulder, because it disperses the deceleration over a longer time period. There are other methods, like adding weight into the buttstock and handguard that can likewise reduce the movement induced by recoil and more is absorbed into that mass than being transferred into you. Those items are also commonplace on the highpower circuit, but again it's a trade-off for the total weight you carry around. High power shooters also tend to not use any muzzle brakes because accuracy is a greater concern than a transition to another target or a quick follow-up shot. Recoil and accuracy are all subject to your own definitions of what you desire within the tolerance of those two. When you get down to the fine tuning of them, they become a mutually exclusive trade off, similar to the muzzle movement vs. shoulder punch of recoil. An overview of two different competition formats demonstrates this. In the two extremes, you will see "action" competition shooters like 3-gun folks going with lighter weight carrier and buffer systems including low mass carriers with less operating gas in order to minimize the muzzle movement induced by the weight and motion of moving parts for shorter time between shots. Highest speed within acceptable accuracy is the goal in that realm. Then on the opposite side, you get the high power crowd that adds as much weight as they can, including things like a Tubbs' carrier weight system to hold the bolt closed longer, increasing lock time and shot-to-shot consistency. There, the goal is for the most accuracy within an acceptable time. |
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Quoted:
I'm shooting an LWRC R.E.P.R. with a 20" barrel. I'm shooting Black Hills molly-coated 175 grain .308, and Federal Gold Medal Match 175 grain .308. LWRC built those guns with everything designed to work with their gas system. Are you experiencing any issues with those 175gr loads? |
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Quoted:
LWRC built those guns with everything designed to work with their gas system. Are you experiencing any issues with those 175gr loads? Quoted:
Quoted:
I'm shooting an LWRC R.E.P.R. with a 20" barrel. I'm shooting Black Hills molly-coated 175 grain .308, and Federal Gold Medal Match 175 grain .308. LWRC built those guns with everything designed to work with their gas system. Are you experiencing any issues with those 175gr loads? I'm curious about that too. If mentioned, I missed any comment about what is motivating the OP to ask about this...aggressive recoil?...not cycling properly?...damaging brass on ejection?...etc. OP, where does your brass eject?...1 o'clock, 3 o'clock, or other? My unmolested from the factory Armalite 20" AR10 .308 shoots, cycles, and ejects spent brass perfectly as delivered with a fixed, factory gas block. My other AR10 has a 16" barrel swap that had more aggressive recoil and a 1 o'clock brass ejection. A JP adjustable gas block noticeably softened recoil and brought brass ejection to the 3-4 o'clock position. Tweaking gas flow and/or tuning buffer setup to match the gun are both reasonable methods for optimizing performance and comfort "if" the rifle is not operating in an optimum range. |
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