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Posted: 5/5/2008 10:29:33 AM EDT
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It's been awhile since I built an AR. I heard CMMG was having some issues? I'm looking for a good MP tested 1/7 twist barrel, Noveske is a bit to steep for me though. Any recomendations? How about complete uppers with a 1/7 twist barrel and a CMT upper receiver? |
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Sabre Satern AR15Barrels.com... and what I went with recently, the WOA SPR 18" middie from ADCO. Why the hell does everyone want 1:7?? You can't load a bullet mag length that takes advantage of this twist. The only reason mil barrels are spec'd 1:7 are for long ass tracer projectiles...... |
If I'm not mistaken - isn't that barrel 1:7? |
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check out the Sabre Defence barrels at PKfirearms www.pkfirearms.com/store/get_items.aspx?type=1&term=11 |
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SABRE DEFENCE "M5 BARREL" Go to the "Commerical" section and scroll down until you see the M4 and M5 barrels |
O.K. I am confused on this one. wouldn't the reasoning for 1:7 twist be that you could shoot heavier lead? do these heavier bullets not feed properly from mags? |
| GDS has Bushmaster barrel assemblies with 1/7 twists. I bought a lightweight barrel assembly and an M4 assembly for $245 each, shipped.You have to ask for the extra tall front sight post if you are putting it on a flat top receiver with a detachable carry handle. They are on the equipment exchange or (512) 707-8353. They ship super fast too. |
Yes they feed fine. Mk 262 IS 77grain SMK bullets. 1/7 and 1/8 will shoot anything you can feed it BUT 90 grain JLK's. Thats a Camp Perry bullet, no need to use it, unless your going to Perry. 80 grain SMK have to be loaded with a S.L.E.D. in the mag. The only bullet that I know that CANNOT be fed out of the mag is a AMAX, Way too long. Take a look at what the barrel makers have to say.. They of all people know what is needed to make a bullet go where its pointed........... |
Sorry, my tone came off rather asshat-ish. I just feel that many folks that haven't got a lot of reloading/barrel-bullet knowledge and experience can be mistakenly led to believe that they need a 1:7, and that the majority of VLD heavy bullets that really need a 1:7 can't be loaded mag length (ie-75Amax, Berger's, etc). Yes my SPR barrel is 1:7, my point is that you don;t NEED a 1:7, 1:8 or 1:9 will shoot up 75gr BTHP's just fine. My Service Rifle match upper is a 1:9 that I shoot Hornady 75BTHP's out of and I usually score in the mid 90's at 500 yards with nary a keyhole. Just pointing out options, if one comes across a good deal on a 1:9 they shouldn't be scared that it won't shoot the heavier boolits. |
hey im full i tried
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