Thanks Daryl!
The grafs ad states Out Of Stock under availability. I’ve looked in all the usual spots and quality cartridge didn’t return my call. Petrov created quite the following of the 400 Whelen here and I thought I’d see if anyone had some extras.
30-06 and 35 Whelen have a smaller shoulder diameter. The original 400 Whelen was made from cylindrical basic brass and has a shoulder diameter of .458. Don’t remember the shoulder diameter of 30-06, but forming 400 from 30-06 is the basis for the much talked about headspace problems that plague the 400.
See Michael’s articles on the 400 Whelen, they are comprehensive.
Last edited by bsteele; 07/10/25 11:12 PM.