PDA

View Full Version : ~What Ammo For My OLL?~


Rugerman
06-06-2008, 09:17 PM
Ok, I'm getting a Stag upper with a 1:7" twist rate barrel. I've heard that 40 grain ammo likes to self destruct in a fast in a fast twist barrel. So what should I use? Standard 55 grain?

What Just Happened?
06-06-2008, 10:18 PM
http://ammo.ar15.com/ammo/

Francis Marion
06-06-2008, 10:44 PM
Your 1 in 7 twist really wants the heavier bullets for best results, but will also digest bullets as light as 55 gr.
Don't waste your $ on 40 grainers unless you want to create smoke and noise only.
Load 77 grain pills and that rig will shine for you.

warpath
06-07-2008, 07:40 AM
62 gr and above is what you want to use in a 1&7 twist barrels, I never knew that stag made a 1 &7 twist upper I got to check that out :http://www.calguns.net/calgunforum/images/smilies/smile.gif
:)

Rugerman
06-07-2008, 12:48 PM
Woops, my bad! It says 1/9" twist barrel :(

So, since its a slower twist rate, lighter gains are ok too? I have no use for 40grains anyway, so 55gr. or 62gr.?

jandmtv
06-07-2008, 12:55 PM
both 55 and 62 will work fine in a 1/9, 62 will be a bit more accurate than 55 though.

warpath
06-07-2008, 02:43 PM
u had my hopes up that stag made a 1&7 twist barrel, cause i know they have some new uppers

jmzhwells
06-12-2008, 09:43 AM
I have a 1:8 twist barrel, shoots everything from 50 and above just fine. The new "non-lead" 50Gr. varmint grenades from barnes say they are for a 1:9 or faster twist barrel. Just stay away from the 36 to 40 grain stuff.