Jagermeister, the cartridges I post the pictures of are for the chamberless gun. The 'Altro' was a brand model marketed by J. & W. Tolley. Some guns I have seen with very sharp steps at the end of the chambers before the barrel proper were really made for a specific length paper roll crimp cartridge, usually 2 1/2", to provide an even transition for the wads to pass into the barrel. I have most often seen this on German guns. Trouble with those is that they are unforgiving with slightly longer ammo and can cause the ends of the crimps to cut off and up the sensed recoil a bit too. Lagopus.....
