If you think you're getting anything close to .30-30 energy levels with your 10mm, you might want to read a reloading manual BEFORE you shoot any more of your reloads. (I assume you're using reloads, because factory 10mm ammo generates only about one third of the energy of an average .30-30 round... ;^)
” (I assume you’re using reloads,...”
Some like them HOT.(11.0 gr. Blue dot).ok not quite a 30-30 but it works for me.