Originally Posted by ellenbr
Any load data contained therein in the »Blue Book« for the 6,5X61R??

Too, would anyone use a Magnum Large Rifle Primer in the 6,5X61R?

Ah, you inquire about its mother cartridge or predecessor. The DWM numbering sequence of that one dated back to the beginning of the twentieth century. At first, it was a military prototype, then a very small number of civilian guns seems to have been produced a number of years later. I consider either as very elusive and possiby downright rare. No published modern data anywhere that I would know of.

As to the magnum primer, I do not think it is "necessary "or indispensable for that one, but it sounds like a rather good idea. The lack of a proper magnum primer plus the lack of a well suitable propellant are attributed to have doomed the rather interesting 9,3x70 (the "moose cartridge") from 1928 in practice, as you may recall.

Carcano