So my friend finally got his Savage 110BA/ATACR/Spuhr setup up and running. We went out to the range yesterday to test some different ammunition. We tried Herters/250gr, S&B/250gr., HSM 250 gr, and my DTA SRS pet handload (his HSM virgin brass/92.0 gr Retumbo, 300 gr SMK, Tula LRM, 3.65" COAL). While zeroing/ammo testing we had the best results with the HSM 250, the S&B had a 2 MOA higher POI but decent groups, the Herters were somewhat inconsistent. The worst (apprx. 2.5 MOA, wandering Horizontal baseline, and not repeatable POI from group to group) came from my handloads. I have thoroughly vetted the bullet/powder/COAL in my DTA, he substituted HSM brass and Tula primers (no GM215M available for over a year). There were no overpressure signs on the handloaded brass, but there was a little harder bolt lift than with the 250's. The fact that we both had good success with the factory loads makes we want to rule out shooter or rifle/scope/interface problems. We didn't have a chrono available for yesterdays session.
First and foremost my friend is concerned about the "1:10 twist only" markings on the SMK box due to the 1:9 twist rate of the 110BA. It looks as though their are plenty of people on here having fine results with the 300gr. SMK/Savage combo. I had hoped that my pet loading would work well for him so it would be easy to share the cost on components, etc. I am fine going into full load development mode, but before I waste anymore of my time and my friends money I wanted to see if anyone else has had compatibility problems with the 110BA and the 300gr. SMK. Thanks for any info.
First and foremost my friend is concerned about the "1:10 twist only" markings on the SMK box due to the 1:9 twist rate of the 110BA. It looks as though their are plenty of people on here having fine results with the 300gr. SMK/Savage combo. I had hoped that my pet loading would work well for him so it would be easy to share the cost on components, etc. I am fine going into full load development mode, but before I waste anymore of my time and my friends money I wanted to see if anyone else has had compatibility problems with the 110BA and the 300gr. SMK. Thanks for any info.