Originally Posted by CampingJosh
You're definitely right that using a shotgun with 2 3/4" chambers would be a sawed off shotgun.
I think that the 2 3/4" shell wasn't introduced until the 1930s, so a 12 gauge from the 1890s should have 2 5/8" chambers. I have never seen 2 5/8" shotgun shells available for sale (except maybe on some ammo collector's table at a gun show), so I think I should be OK.
Of course, the above paragraph included two uses of "think" and one of "should," so I will definitely check with ATF. I am working on the letter right now; I will post it on here for comments shortly.
First, all Winchester 1897 shotguns in 12 gauge were chambered for 2 3/4" shells, so they've been around since, at least, 1897.
Second, 2 1/2" shells are readily available, if you know where to look. For that matter, Aguila makes 12 gauge shells that are about 1 1/2" long.
Has nothing to do with ammo. Has to do with age.
Meddle not in the affairs of dragons, for thou art crunchy, and taste good with catsup - George of Lod, Year of Our Lord 297
I always take precautions.
Beware the Evil Bullet Fairies.