Hey guys, I just got an S510 carbine with a Rich in MI LDC included, and I've been looking at it, and it seems the muzzle opening is big enough for a 22 pellet to clear easily. I'm thinking the guy I bought it off of either didn't have it sourced for 177, or Rich sold him one with a 22 endcap. Anyways, how much of a difference would that make on a rifle, shooting a 177 through an LDC large enough for a 22? Would there be that much difference if the exit hole was smaller?

Thanks

I'd leave it be, a little wiggle room won't hurt and there isn't much if any difference.
Have fun with it.