357 Mag Bullet Jump Problem
I have been playing around loading some 357 mag 158g LSWC HP. Load the J frame up, shoot 4 shots then measure 5th round. It is longer every time. I have increased the amount of crimp to the point that the case is into the lead. The bullet jump is not so bad that I am concerned about cylinder lock up. These are not hot loads, 4.8g of 700X and speer LSWC HP bullets. Just slightly hotter than 38spl +P. Recoil is not bad from my S&W Mod 60, but you know it isn't a 38spl. How does BB pull it off.