I understand that an Italian ammunition manufacturer offers an all brass case designed for 12 gauge shotguns and/or black powder 19th-century rifles. Apparently these cases are designed to be handloaded with pistol primers - large pistol or small I don't know.

Who makes this case?

What primer does the case accept? Magnum primer acceptable?

What possible difficulties should I look out for?

Does correctly loaded ammunition function reliably using smokeless powder? using black powder?

Can't tell you about the Italian maker, but plain old off-the-shelf Magtech CBC cases are cheap, plentiful and take large pistol primers.

Italian brass shells? Don’t know....
As far as I am aware there are currently 2-1/2” drawn brass shells from Magtech at Buffalo Arms that use large pistol primers and then there are 2-5/8” shells sold by Track of the Wolf that take large rifle/pistol primers.
Sometimes you can find the older drawn brass “Alcan” 2-1/2” shells that take standard 209 shotgun primers.

Past that there is Rocky Mountain Cartridge that can make cases to fit 2-3/4” or longer chambers. They use shotgun primers.

You may already be aware, if your rifle is a vintage gun, that those rifles intended for brass shells had a larger bore/groove diameter than the “paper case” rifles.....different ball or bullet diameters and of course wad diameters as well.

Properly loaded, any of these shells will function fine loaded with black powder to the appropriate Dram load, or some specialised smokeless loads. (Cal Pappas in Alaska specifically has had success with Blue Dot). Just be aware that experimenting with smokeless in a vintage bore rifle is not a casual exercise.

- Mike

from shot show

Winchester Ammunition plans to release the 12 gauge load in November 2019. These shells will have full brass hulls, something that has not been available from Winchester for many years. Before plastic hulls, paper hulls were the standard for shotgun loads. As you might imagine, paper hull ammo didn’t survive very well in the rain and mud of combat. So, Winchester made full length brass cased buckshot during World War II to eliminate that concern.

Read the original article here: http://www.gunsholstersandgear.com/shot-show-2019/ . Make sure you visit GunsHolstersAndGear.com for all of the latest gun news, reviews and SHOT Show coverage.