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Posted: 1/27/2006 4:20:58 AM EDT
I read the ammo oracle, and they didnt really have much too say about the differences in these two. I want the tighter twist for the 77 grain, but wont be shooting that exclusivley. Really dont see myself shooting anything heavier. So what are the advantages these two twist rates have over each other?
Link Posted: 1/27/2006 5:05:13 AM EDT
None for your application.
Link Posted: 1/29/2006 10:35:14 AM EDT
Any one else?
Link Posted: 1/29/2006 11:52:43 AM EDT
Link Posted: 1/29/2006 12:04:55 PM EDT
Either one is fine for what you want to do... I have a 1:8 and it does fine from 55gr and up (to 77gr).

Link Posted: 1/29/2006 2:56:05 PM EDT
My Noveske 1/7 polygonal does not shoot 55gr as well as my other barrels, including 1/9 Colt HBAR.

I can expect 3rd groups at 100yds, all touching edges w/ 75/77gr; 55gr M193 goes out to 1 1/2 in. Colt 1/9 will do nearly 1 inch with m193, maybe a quarter inch better than the Noveske.

How much of that is spin rate? Don't know. If you really want to shoot alot of 55gr, I'd go with 1/8 in your situation.
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