Help with Bolt Rifle Die Set

I wondered about that. Redding has some weird alphabet soup naming for the dies. And it changes each year based on sales so one year the A dies might be next years C dies.

I guess if you use Redding dies exclusively, you get to know this stuff but until now, the only Redding stuff I have are some 45ACP & AR "A" dies and a Titanium Carbide GR-x Push Through die.

Thank you for that information.
 
I understand that the outside of the case dimensions are almost identical across the board per given caliber to meet SAAMI specs for chambers. What I meant is that the thickness at the base of NATO brass gets worked utilizing small base dies whereas the normal resizing dies do not work that part of the brass. The entirety of the brass under pressure of the dies gets worked, not just the "outside" of the brass, but the "inside" of the brass as well, as it flows while being resized.

So does the small base die used on NATO brass due to the extra thickness at the base of the brass cause early failure at the base?

I suspect that failure will occur at the case shoulder and neck prior to case failure any place else unless overpressure events happen. I'm just concerned, because I do not know, whether a small base die is inherently bad for use on NATO brass.
 
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