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Posted: 2/9/2006 7:38:11 PM EDT
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Ordering a new SPR barrel and I see that it is threaded for a flash suppressor. I remember reading a thread about the loss of accuracy due to turbulence behind the bullet created by the flash suppressor. Just one question: B.S or NOT B.S. |
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I just had my match barrel threaded. I will shoot some groups with a M16 FH and a Phantom and post some results. This is my taggage. It may be a week or two before I have time to punch some paper. You could just install a thread protector. I considered doing the same. |
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I had my 20" barrel threaded and a flash suppressor added. That changed my point of impact 8" at 100 yards. And it did open up my groups. But, I can only tell that the groups are larger when I compare before and after targets that I shot with my rifle scoped. With open sights, the before and after targets look about the same. |
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I bought an Oly with a 16" pencil barrel upper without a FS. Would shoot 3/4 - 1 inch groups. Generally 1 inch was the norm. I later bought another Oly with a 16" Hbar with A2 FS. It will shoot 1 - 1.5 inch groups on a good day. Both are unlined barrels, and are acceptably accurate to me, but the plain barrel is clearly the more accurate of the two. -K |
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I know a guy who, several years ago, got two of the big fat Bushmaster "fake A2 XM177 slip-over" suppressors, cut them off just at the beginning of the threadline, and installed them that way to get rid of the excess weight, and swears that his bench groups have tighetned up in a manner consonant with the above previous posts. His 'modified cut down' slip-overs look like an A1 FS on steroids. There is a much larger open space around the crown for the flash vortex to remain undisturbed. I guess he was right after all.
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