I don’t think it would be too bad. Let me know if you end up with it, I have a Bianchi booster for an 8 3/8” 27 somewhere I’ll gift you. Bet you could get some scorching velocity with that long barrel. I could send you some bullets to try out before you buy a mold too. I have 358156 in both solid and HP and the 358429 and maybe some others I’m forgetting. Need to drag all my molds out and fire up the pot, I’m out of 38/44 fodder.