[steve4102]

I'm fairly sure that the Remington 7-1/2 "benchrest" primer that Nosler recommends in that guide uses a magnum priming compound

Note the flash from the 7 1/2 primer compared to the other Small Rifle primers.

http://www.6mmbr.com/PrimerPix.html

There is also this.

http://www.handloads.com/misc/primers.asp

And this from Hornady #7.