7mag vs. 7-08 sight in
My 7-08 Weatherby Vanguard w/ 1:9.5 twist loves Hornady superformance 139 gr. sst's. I average .360" 200 yd groups.
I bought a TC Venture in 7 mag last year, same barrel length, it has a 1:10 twist. Started shooting a few months ago after mounting scope, got serious with sight in this weekend. I had used 150 Fed. Fusions to get close because they are cheaper and planned on hunting with the 139 Hornady's. I started at 350 yards because I wanted to see how the BDC reticle worked on the scope.
I got 4" - 5" groups w/ the 139 grain sst's and 1.5" w/ 150 fusions ???!!!
Moved to 250 yards today to verify zero did some tweaking on scope and Fusions are real close to zero, SST's all over the place ! Just wondering what everyone thinks, because I thought the SST's would shoot well, like the 7-08. Do you think it's the velocity of the Superformance ? I wouldn't think the slight twist rate difference would matter.
Sorry for the long post