Has anyone tried IMR 7383 with cast bullets in the SKS, specifically the Type 56 (Chinese, late manufacture/spike bayonet). The reason I ask is that I take possession of the rifle tomorrow and have several pounds of 7383 which I'd like to put to good use. I will be using the Lee ~175gr. RNGC bullet for the 8mm Mauser, which I've [easily] resized to .3145" to suit what I think is the Type 56's bore (owned one in the past and that dimension worked extremely well). In the meantime, I've loaded 30 rounds with 8gr. Unique + 20 with 8.8gr. Unique and the resized Lee CB. In short, is 7383 a good (or bad) idea in the 7.62 x 39mm cartridge?