So I have an 870. It's an express magnum 12 gauge.
I've read on a shotgun forum it's common to take a 2 3/4" gun and put a 3" chambered barrel on it. Some guns need the ejector changed and some don't. And since the saami pressure limit is 11,500 for both it's safe.
Anywho, So my question. Could I take an older barrel with a 2 3/4" chamber and ream it for 3" shells and use it safely?
I have a 3" chambered barrel already I'm just curious.