I have heard and read that there have been problems with 2" shells having the shot "ball" into almost a solid mass when shot in longer chambers. Theory is that escaping gases cause the problem because the wad can not create a gas seal in the chamber and the hot gases cause the shot to almost weld into a solid or semi solid mass. Never seen it or done it myself. Sold my 2" gun and still have a few boxes of reloads on hand. Best to ask a few of the members here from Great Britain if this is truth or just another urban legend.
