6.5 Saum barrel seems super slow

317millhand

Major Hide Member
Full Member
Minuteman
Supporter
May 8, 2011
1,912
165
48
Hazard, Ky
Barrel is a 24" Proof Carbon Fiber. Freebore is supposedly .120 but I'm not sure.

With 60 grains of H1000 behind a 140ELD-m, I'm getting pressure. speed is just shy of 3000fps. Hornady brass. 2.845 COAL is touching the lands with this chamber. It seems short to be .120 freebore. Anyone care to take a guess on actual freebore with that info???
 
I haven't used that bullet in the saum. I am at 3030 in my 26" saum using a 140 hybrid and 60.3 grains of h1000. Some reason some people have no problem getting the higher speeds and others get pressure early.
 
Barrel is a 24" Proof Carbon Fiber. Freebore is supposedly .120 but I'm not sure.

With 60 grains of H1000 behind a 140ELD-m, I'm getting pressure. speed is just shy of 3000fps. Hornady brass. 2.845 COAL is touching the lands with this chamber. It seems short to be .120 freebore. Anyone care to take a guess on actual freebore with that info???
How many rounds do you have thru the barrel?