Lefever made what people wanted. I have an early ten hammer gun that has 3" chambers. A 12 thumb push has 2 7/8" chambers. We think of extra long shells for heavier shot loads but in those days the extra room was used for extra, better wadding.

On your new gun treat that stock like a semi inlet blank. One thing I truly like about Lefevers is that the stock are so trim and the lines are so beautiful. That chunk of walnut needs to be timed down from a Saint Bernard to a greyhound.