I have a Leupold VX-3 1.5-5x20mm on my Ruger 416 Rigby too. I think I'll by buying RCBS 400 grain mold for mine so that I can practice a bit. Sort of spendy to shoot jacketed bullets in it. I understand that 400 grain cast bullets can be loaded full speed in the 416.

I prefer classic.
Semper Fi
I used to run with the hare. Now I'm envious of the tortoise and I do my own stunts but rarely intentionally