Can't say it'll work for all but I recrowned my SKS's two nights ago with a .30+ cal tool from Pacific without removing the barrel from the stock so nothing was changed except the crown. The crowns were quite rough...typical dime-a-dozen rifles. It went from 3/4" at 25 yards to less than 1/4" at 25 yards - one ragged hole! I can't wait to shoot at a longer distance...