Thread: Small bore double rifle.

cordite...you take the said same two SMLE barrels and put them in a lathe...turn them down till they fit neatly INSIDE your 12ga barrels with the rims of cartridges sitting inside the rims of what would be shotgun.... so non ejecting as such...unless you want to get all fancy and set it up right. its not that hard to do..a skilled man on the lath can take a bull barrel blank and turn it into a working insert ...may take an hour or twelve but awesome fun once its done.