what is your COAL???

Re: what is your COAL???

GA Precision M40A3 - 2.875" with a 178 AMAX
Underground Skunkworks Perseus - 2.835" - 178 AMAX
DPMS SASS - 2.810" -magazine is the limiting factor with that rifle.
 
Re: what is your COAL???

2.155", 2.55", 2.80" for the three rifles I shoot most often. Hand gun stuff is shorter. ??

I have no reason to suspect barrel length has any direct effect on a chamber and best OAL.
 
Re: what is your COAL???

I think what your shooting off the lands / caliber would be more appropriate in reference. No two guns are alike as the saying goes when it comes to chambers and bores.
 
Re: what is your COAL???

D-260 139 Grain Scenars – 20ths off the lands – 2282 COAL

J-260 139 Grain Scenars – 20ths off the lands – 2272 COAL

Barrett 338LM 300 Grain Scenars – 59ths off the lands – 2962 COAL
 
Re: what is your COAL???

Rem 700 5-R Milspec.

Tried all different lengths but 2.800" with 175gr BTHP @ 2550-2600 fps does the best. Only change to rifle is Timney trigger and 7 round mag extension.

The leade on this rifle is so long I barely have any bullet in seated in the neck when I try to reach the lands. Would rather be able to feed from the extended mag. Accuracy is as good as .191" 5-shot group @100 yards.