Guess 'ya gon to have 'tah get a 3/4 stretcher or soak them 3 1/2's in hot water to get them 'tah shrink someNo you can't. I have 2 different ammo bots that say there is no #4buck in 3inch out there plus I check the some sights myself.. There is 2 3/4 and 3 1/2 but no 3" for some reason