Home Forums Hunting & Shooting Rimfires 1903 Win. 22 automatic.

Would anyone have a decent barrel for a Winchester 22 automatic? My rifle has a fairly good size pit in the chamber so when fired the brass swells up into the pit and gets stuck, the extractor rips through the rim. I tried polishing the pit out but it's too deep.

This may sound stupid but I would degrease and apply some JB Weld to the pit. Let set a few days and gently sand it flush with some kind of device in a battery powered screwdriver being very careful not to damage the chamber.

Use of JB Weld is an excellent idea. I was thinking maybe a rental chamber reamer could be just the thing for precisely trimming away the excess JB Weld. A .22 WIN AUTO reamer would likely be hard to find; but a .22 WMR might just be the same OD. Worth a check to see.

Seems the .22 WMR reamer is out. The WMR is .242” vs. .250” for the WIN AUTO. So, maybe a hand-turned quarter inch drill bit could do it.

I'll try the JB Weld, good idea! Thanks!