Thats pretty interesting, I have a mold for my SKS that drops 160 gr FN bullets at .314
What powder are you using? I would assume H110 or equivalent w/ srp?
Your gona make me want to find a Black Hawk in 327.
H110 would be a great choice but I was thinking the bullet was too long to stabilize and I had just a little 2400 that I don't use so that is what I loaded it with. I crimped them in the last groove and they fit into the cylinder. They shot better than I ever thought they would. I may try H110 the next time as I now know it will work.
I have a mold for a 150 SP .314 bullet but it is over 0.1" longer than the current one. I may play with it sometime in the future but I think the stabilization issue may raise its head.