Go ahead and laugh & tell me haw stupid I am. I am considering making a .25 ACP rifle. would I gain anything over a .22lr besides bullet diameter. I would think I could make a more accurate rifle than your average .22, if, for no other reason than case and bullet uniformity. If I did attempt this, how would you go about it? i'm thinking take a single shot .22 and modify the bolt head. maybe a handi-rifle? Let the laughter begin.