I picked up a Seaco-Cramer custom precision bullet mould today. It is a great mould #RG4 I think it is about the same as the current #301 mould. It drops a bullet at 200 gr .311 I cast 150 bullets they had a weight of 200 to 200.4 grains. I am going to try in my whisper and my 3006.
Kirb