They where made in two different weights per Caliber sometimes three like 30 cal , in .284 ,140 &160 weights , it's aPremium bullet for sure meant to be used on tough game animals , if used on antelope it wouldn't work as it should , but who listens to the bullet mfg anyways ,people think their smarter , oh well you get my drift ,load em up they'll work in eather of your 7mm Carthridges ,cheers !,ps the slow death is bunk , poor shooting , or bumped or droped rifles cause the above , practice make us all better Riflemen & Riflewomen thks .