A question on this. What is the head diameter? Is it the standard .473" also, or bigger, at the magnum .534" or whatever that is. Or is it somewhere in between?

That too caught my eye about the RUM starting out faster with the same size bullet. Is it the same bullet? Only thing I can think of is the faster bullet is creating more drag, therefore slowing down faster than the bullet that starts out slower.

Later,

Marcial

I too have been thinking of a .375 round, and this would fill the bill nicely. Wonder ifa custom on a Mauser action would be possible? (I think the head diameter would be key).