What will stop them ,I've just got into powder coat have coated 30/30 152 gr , I have a place at farm I shoot at 50 yards , 5 30 inch tires stacked upon each other and filled with sand , let my Granddaughter shoot couple my old 30/30s at 50 yards and these bullets went through front side tire through sand and out back side of tire, Put up 6 2x6 boards screwed together and bullet never slowed down, Elvis ammo says coated bullets will mushroom but will not break apart, anyone on here had this experience.