22lr to 22mag?

22lr to 22mag?: "What you do is remove the ejector and spring. Then shim behind the ejector so that it is about .001 to .002 high above the breach. I put thick grease in the hole for the ejector so it doesn't fall out. Then you ream the chamber, stop when the rim cutting part of the reamer just touches the ejector. This will ream the ejector to match the chamber you have just cut. Take out the shims and put it all back together and things will be good. Good luck. Larry"