#300 Rounds to pull, a progressive press? I try to NOT get too far ahead of myself. While a puller is a must have, the goal is to not need it. Currently on my third kinetic hammer type (20$) in app 40 years, I can't recall the last time I used it. The plastic eventually will get brittle, & the way you use it & what you strike it on matter. The press type sounds good in theory but have never tried one.