.223 reloads for F Class TR
I am relatively new (5 yrs) to competitive shooting at 100-300 yards. My Savage 12 VLP in .223 with a 1:9 twist barrel has been a good shooter and learning experience. My best results have been with the relatively new Sierra TMK's in 69 grain over 22.3 grains of H223 which gave me 2865 fps. I also found a high OAL to be beneficial compared to the normal 2.260, I was at 2.285 with better scores. I have been getting 193-197 at 300 yrs with this load. Unfortunately, not good enough where I shoot. I recently opted to get a Shilein barrel with a 1:7 twist to shoot some heavier bullets. Now I have to embark on load development, probably with projectiles in the 77-80 grain range. Any advice on Sierra vs. Berger, what OAL to work towards, and best powder to use would be appreciated.