Originally Posted by
STANMAN
If that gun has sentimental value, don't shoot it. The 742 has an internal rail system that the bolt rides on that slams it into the reciever gouging it every time you fire it. After about 500 rounds (this varies with every gun, but does eventually happen to ALL 742's) the gun will jam on every shot.
Also if you want to shoot that thing at 300 yards, get rid of the see through mounts. Shooting a 742 at 300 is a big enough chore, you don't need the added complication of see throughs. To try to explain: Think of how high the scope is over the bore, now draw a straight line coming out of the bore and another straight line coming out of the scope, see how far away they would be and how much you would have to adjust the scope "down" to get the paths to cross? Now lower the scope in some non see through mounts and do the same thing.
Just trying to help.