Accurizing kit shown here for reference.
This example went into a MKII Bull Barrel Government model.
Note: If having failure to eject (stovepipe) failures - a common issue is that the ‘lips’ of the magazine actually sit too high and cause things to drag and hang up.
I had my gun back and forth to Ruger when it was new - and looked all over the place. Found an obscure posting on a forum somewhere (for the shooting equivalent of pelicans) and they explained this.
10 minutes with a Dremel tool, and things became much, much better.
Lots of fun to shoot these cool pistols.