Sorry I didn't get back to this sooner, duty called.
Check out
http://www.aguilaammo.com/minishells.htm And, I was wrong, the shells (AFTER firing, of course) are 1 3/4" long. Full speed, 5/8 oz. 7 1/2, also made with a slug or buck shot. GREAT training loads, as they are about the same speed as 1 1/8 2 3/4 dram equiv. 12 ga. As I said above, my local retailer doesn't have any and their distributor (Acusport) also has none in stock. I have yet to hunt with these shells, but they break clays in an authoritive fashion.
Good shooting,
Hap
