2" at 50 yds is a fair sized group, even for a hard used barrel.

One might try to separate parameters by shooting the rifle with the same ammo, without the forearm just to see what happens. Might check the fired case appearance. Try some other ammo.

Some of these rifles are reputed to have a long throat, one might ascertain where the rifling begins with a dummy case with bullet and some steel wool for burnishing the bullet.

Sometimes barrels can be loaded with copper, a proper cleaning could help that point of view. Perhaps a copper solvent of your choice, not left in the chromemoly barrel too long; then your choice of bore protectant which is patched out before use.

Ammo could be a factor, whether factory or handloaded or not; some little, thin barreled rifles are sensitive to ammo choice. Might not hurt anything to try to find the throat, and/or use some different handloads or factory ammo types.

The articles mentioned above have some good pointers in general, worth reading. Read them with an open mind, then decide what to to keep or not.

One could always replace the barrel, but kinda a last resort for most.

An overly heavy, creepy, trigger does nothing for practical field accuracy. Neither does a loose buttstock.

As a last thing, might check the scope mounts for tightness, and the scope itself. I suspect that scopes can be troublesome at times, as in some do not return to zero on each shot.

Torque,

Ruger deos not make 1Bs in 7x57! (They once did, about 75 of them, way back in the 70s. I have one of them.)

7x57s usually only come in RSIs and 1As now. Unless that is, you got a "one-of" NIB from the factory. And never say never with Ruger. In that case, do not fiddle with it at all or you would lose collector value.

What kibnd of ammo are using?


1B