I tried Barnes X bullets in my Savage model 99 in, .243 Win. I loaded them rather tame, but to my surprise, they caused very high pressure so I only shot 2 out of my 20 loads. The primers were mashed totally flat, cratered, and one was pierced. I had ejection problems and nearly had stuck cases. I came home and pulled all the rest of that batch. The very same powder load in a Hornady lead core bullet, showed zero excess pressure and shot great.

Last edited by reivertom; 04/03/20.