I’ve some +P JHP that I imply to experiment with (bought them from Gander Mountain in equally .45ACP and 9mm…I believe it’s Remington). These rounds use reloadable brass casings and 115 grain FMJ projectiles and can match the ballistics of a number of other well known plinking alternatives. 115 grains https://buyredarmystandardammunit60581.wikihearsay.com/3275774/5_56mm_62_grain_ammo_fundamentals_explained