I shoot my Shilo 50-140 a few times a year. 630 grain bullet. It is stout, but not anything like my 50 bmg. I sometimes load it with 300 grain bullets for kids and ladies to shoot, just so they can say they shot a Big 50. The 300 gr bullets are for my 50-110 winchester '86. The 50-140 holds a bunch of black or aap and makes a bunch of smoke. Most of my loads are with 5744.