The lyman gpr has I guess you would call a drum it makes a 90degree turn. Its got a set screw so you can clean into the barrel channel.
I'm not using a shorter one I just took a few wacks with a file and its clearing the hang point now. If I loosen the drum as it would need to be rotated rearward I would think it would work itself free and become loose under firing.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent