I know its not an H&R, but I have a ported Rossi 12ga slug gun. It is much louder than my brother-in-law's 12ga USH, you really want hearing protection, just one shot w/o makes my ears ring. It also kicks like a mule because it is so light. I have lost zero on both shotgun scopes that have been on it, due to recoil. I can shoot the USH prone just fine.