Gil Ash of OSP Shooting Schools demonstrates why shotgun shooters shouldn't look down the barrel, nor at the bead. By focusing on the target you might see fewer targets but you'll surely break more.
When shooting an M1 Garand and here I am talking about a service or field grade rifle not a match grade rifle, there are three areas to check. Like buying a used car there are usually a few areas you want to examine to insure the car will operate properly. Three areas to check that will ensure your Garand will shoot fairly good groups are tightness with the gas cylinder, rear sight, and stock lock-up.
