i was thinking about spendin' the extra bucks on the lead alternatives this year, besides steel. i got a nova 12ga. i been seein' that alot of the nontoxic recomend a nitro proofed barrel.all i plan on usin' is the chokes the gun came with, and the 28" barrel. i aint gonna shoot anything out of the full choke, but the bismuth site i was at said i could. (i thought bismuth was brittle, and didn't penitrate well). i went to the benelli website, and nothing about nitro barrels was mentioned. 'geuss my question is, what can't i shoot out of this gun?