Took my 1954 vintage Combat Masterpiece out to get a little range time and the cylinder latch won't release the cylinder. The cylinder turns fine, will operate in SA and DA modes with no problems. But that cylinder will not swing out. I tapped on the latch release and the cylinder itself, but it will not open. It looks like the cylinder is forward too far as the b/c gap is non-existent. Open to any suggestions. Thanks.