Most often then not, I get a question on the twist rate of AR-15 barrels (AR-10 is a completely different animal, and is not addressed here) and which twist should a client select. The answer depends totally on you and what you will be using the rifle for. But let's explore.Common twist rates of AR-15 barrels are: 1 and 7, 1 and 8, 1 and 9. So what's the most optimal? Answer is as always, depending on what bullet grain you prefer to shoot.AR-15 barrels come in different lengths, materials, treat...
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