I tried some 95gr Bergers and Rl-17 in my 1-10.5" twist to see if they would stabilize. Well so far so good. Shot them out to 500yards today with good accuracy and all holes were round. i will be cronographing on the weekend. I ended up using 40.7gr of RL-17. I shot some rounds loaded up to 41.6gr but was getting slight ejector pin marks.