1851 Navy

[crockett]

I agree with Zonie, sometimes the gun is spitting lead because it doesn't index or line up correctly and folks think it is a gap problem. Working on the forcing cone MAY help with lead spitting if the problem is very slight. If you are worried about a loose cylinder sliding back and forth, a small washer in front of the cylinder(on the pin) may help- the Colt Single Action Army uses a collar type arrangement. Now I have never tried the washer idea- just a thought- may work.

 

[robinghewitt]

Filing off the frame is the correct way to tighten things up,

Some heathen had cut in to the barrel on mine, easier because the pins don't get in the way I guess. I had to fill the gap and chop back on the other side :nono:

 

[Smokin6Gun]

Sorry but I must disagree. .020" on a new Rev I would send back. .004" to .006" with proper wedge ajustment for Colts&Replicas is what it should be. Not much you can or have to do with a Rem but shoot it won't hurt a thing.
.010" is fine like I said I got one 45yrs old with a .040" gap shoots fine.
But I can't agree when you say it should be .020".
It won't foul up if you make some good lube pills.