One of the guns in my collection is a governor. I've been told and have read that they can shoot 45 ACP, 45 long colt, and 410 shotgun shells. I have also been told that you can use 45 gap ammo in them. Most of the shops in my area are getting rid of their 45 gap ammo for next to nothing. I would buy all of it if I could utilize it in my governor.