Re: RUGER 10-22
Having a rimfire chamber reamer on hand can be an accuracy tool.
Many of us have noted that a new rimfire rifle can shoot the doors off anything comparable, but that after time, accuracy drops off a bit and then plateaus.
This is generally caused by an accumulation of lead deposits out at the the very end of the chamber neck.
Employing a chamber reamer by hand to gently chase this lead deposit out can restore original accuracy, and makes a good periodic maintenance step for rimfire rifles.
Obviously, this usually requires removing the barrel to achieve, but taking a bit of time to figure out how to do this without buggering things up can improve and extend accuracy indefinitely.
With a 10/22, this operation is a snap.
Greg