277 170 berger elites

[Longtooth32]

I tried the 170s today with RL 26.
They shot just over moa at 200 yards and 66 gr of RL 26 gave me 3000 fps with no pressure. Not sure if rl26 is the right powder . From 62 gr to 66gr
I only gained 40 fps.
I shot a 66 gr load at the 500 yard steel and it was 3.25" group which supprised me. I thought they would be horrible in this 10 twist.
Not sure what powder to use to get more velocity , any suggestions ?
Retumbo maybe ?

My gun, my chamber, my results....work up your loads...

Fire-formed brass, neck sized using Russian Mag primers, 3.54" COAL, 28" 1-9 barrel, 3225fps with an ES of about 10fps in a 10 shot string...

72 grs of RL-26. Absolutely no pressure signs...