Ed,
In addition to Oskars remarks,several makes of full length einstecklaufs are adjustable for point of impact at the muzzle, and are avaliable in calibers from 22LR to 375H&H. Even the short ones are accurate enough to be really useful, especially if left in place after final regulation.As proof, I have taken hare,squirrel,racoon,fox,and bobcat,and a deer(accidently)with einstecklaufs in my drillings.
Mike

Last edited by Der Ami; 11/30/14 01:45 PM.