I bought 2 moulds, one a 350 and the other a 420, both NOE which are similar to RD's with a deeper grease groove.
I shoot the 350's at two speeds, one is a 1400fps load and the other is a 1800+ load. I find them both to be accurate. Perhaps this will be my longer range, flatter shooting round. I don't know what game can't be taken with these.
My other bullet, the 420g I also shoot at two speeds. One @ 1400fps and the other close to 1700fps. Again, these are both accurate.
If I had known how accurate the 45-70 lever really was, I'd have bought one years ago.
Have yet to hunt with it, but either bullet would do and if I might, I'd probably open things up by using the 350g to start with.