Theres never been a shotshell cartridge for the Rem 5mm mag. Just .22LR and .22Mag. The only pistol or rifle cases I've ever seen shot used in are in a straight wall case. You can't put shot down below the shoulder or you'll blow the gun up and theres no room in the neck for a decent charge. Last shooting shot out of a rifle bore is only effective for less than 10 feet. There are "garden guns" popular in Europe usually bases on a 9mm rim fire like the Flobert. They were usually a smooth bore but rifled ones were available that sometimes a shot cartridge was used in.
Last edited by scooter22; 02-04-2019 at 07:29 PM.