Originally Posted by AF Shooter
I am the proud owner of a new SSG custom (Thanks Nate) and the rifle is truely awsome. The rifle shoots well under 1/2 moa and Nates new brake makes this a real pleasure to shoot.
Phoenix action w/ PTG bolt and Sako extractor
Broughton 5C 28" heavy Palma
Mcmillan A5 Adjustable
Seekins detachable mag system
Night Force 5.5x22x50 NPR2 zero stop
My problem is that the velocity seems low for this set up and I was wanting to be around 3200 fps with Berger 210 BT Target bullets. I am getting pressure issues at anything over 3000 fps.
Berger 210 BT Target
.010 off land
results do not change if necks turned or not or if using .335 or .336 bushings
165 rounds thru rifle now
90 grns- 2990 fps
91 grns- 3088 fps
92 grns- 3060 fps
94 grns- 3170 fps
90 grns is only one that does not have pressure issues. With others the I get bolt lift on last 1/4" of bolt cycle and loose primer pockets at 92 grns. Velocity jump between loads seems high and the 92 lower than 91 is odd.
Really want more speed and appreciate any insight with this.
Don't let other peoples velocity bother you. your velocity will be what ever the rifle decides
it will be.
All rifles are different and different barrels make a difference in velocity with the same load.
I would recomend that you work up to the point that you see pressure signs and then back
off one or two grains on the powder charge. then play with different seating depths to get the
best accuracy. (the further away from the lands the lower the pressure normally).
Your factory rifle may have more free bore than your custom so don't try to compare the two.
Accuracy is more important than velocity . So work in that direction and let the velocity fall
where it will.
Just my 2 cents
J E CUSTOM