Quote Originally Posted by sharpshooter View Post
A lot of the older actions were distorted from heat treat, typically banana shaped. Ideally, the biggest percentage were machined within tolerance, but with a heavy hand at the belt sander, the rear flat and the od were affected to the point of being out of whack.
...and we have seen more than a few that someone stuck a tool through the ejection and mag ports to support the action while banging on a barrel nut wrench. Then selling the twisted action/rifle to recoup their investment.