You know that there are many other <rifle>s in the world, but this one is yours. So you use it to shoot <it> for X damage. SPLAT! BONK! BOINK!
You do the whole "this is my rifle; this is my gun" thing, then shoot <it> with the former for X damage. POW! POW! SMACK!
You rifle your pockets for ammo, then shoot <it> for X damage with your rifle. SMACK! WHAM! KERBLAM!