Most of the ammo is Fiocchi or Rio(burns dirty - has residue). But be sure to request which shell you desire: for a 12 bore 24, 28 or 32s. I can assure you that a truck load of 32s in a 12 bore double will result in a painful shoulder and a necessity of a nightly massage. Last year, I saw a few Benellis(non Cordoba) but 391s in 20 bore seem to be the choice for high volume. But if you are shooting for your name on a board(2000 to 2500 Doves) and your averge is less than 50%, you better have the auto cleaned nightly. It also appears to wear your thumb nail less.
Kind Regards,
Raimey
rse