my brothers got a old bolt action sheridan pellet rifle. ( takes up to 8 pumps. by 8 its hard to shut the handle) takes hunting pellets too. the slug is about a gram in weight too. at 30 feet it would go through 3/4 of a real fat phone book here. cauliflower dimes taped to the wall. it kills woodchucks with skull shots.
if you took it out to kill pests, the pellet went through them, not like a pos daisy.
edit: iirc, it shot a 4 or 5 mm slug lol it was a nasty pellet gun