Thank you Wanabebwana Its not about extra power its simply that the `64 is the one that I want.

Some want the pony others want the `vette.

Power? I looked at a 416 Rigby yesterday in Mod 70 advertised for $2200 and thought for 5 seconds...nah I want the `64.

The rifle to be is a Mauser M12 in 9.3 x 64 NIB but if it gets to be in the " too much fucking about basket" I will have a rethink.
I actually thought that the process was far simpler,not so!

Is there another calibre/donor better suited to start with?