jsn
Gold $$ Contributor
The only book I haven't seen referenced so far in this post is Wolfe Publishing's Wildcat Cartridges, one of these 2 volumes may have the drawing. I looked for it online as archived but it's not out there. Cartridges of the World is archived but only has the 285 OKH.
I think you need to do the following:
1) Chamber cast to measure what you have.
2) Contact PTG, they can email you the drawings for the chamber and resize reamers they have.
3) Compare 1) and 2) above and make sure no one did anything else to it before you start spending money on an assumption.
I did find this drawing on post #13:
www.shootersforum.com
I think you need to do the following:
1) Chamber cast to measure what you have.
2) Contact PTG, they can email you the drawings for the chamber and resize reamers they have.
3) Compare 1) and 2) above and make sure no one did anything else to it before you start spending money on an assumption.
I did find this drawing on post #13:

.280 Dubiel Magnum
Hello, This is my first time on this board. I'm looking for any and all information on the .280 Dubiel Magnum that Elmer Keith wrote about on occasion. Info that I have gleaned so far suggests that this cartridge is a .300 H&H Mag. necked to .288 (original) or .284 with no other changes to the...