2 different sizing dies????

[leadhead]

Is there a difference between the Argentine and Belgian mauser sizing dies?
Thanks for any info....
Denny

[AntiqueSledMan]

Hello leadhead,

As far as I know the 7.65x53 and the 7.65x54 are the same cartridge.

All I have shot through my 91 Mauser is formed military 30-06 brass.
I ran them through a Redding 7.65 Belgian Trim Die, then through the
Lyman 7.65 Argentine Sizing Die. I did have to turn the necks as they
seemed to be to thick to chamber. I used Hornady .312 jacketed spritzers
and accuracy was fair. Since I've picked up the LEE C312-185-1R mold
but haven't tried it yet.

AntiqueSledMan

[Guesser]

My Lee dies have worked for me for many years, the only 53 marked cases I ever had were Lapua and they grew to 54 after the first firing.

[EDG]

You can look up the standard for the Argentine Mauser and all other standardized Mausers at the CIP Homologation site. You will only find (1) 7.65 X53 Mauser.

http://www.cip-bobp.org/homologation/en/tdcc_public

The problems you run into are errors in the dies.
The Lee dies are too long by about .010 ".
I have a set of Hornady Pacific dies that are about .035 too short. I once had a CH trim die that was short .027.
One the other hand I have 2 RCBS FL dies and a RCBS trim die that are all exactly the same and they match 4 Rifles perfectly.

[M-Tecs]

http://castboolits.gunloads.com/show...-65X54-Belgian

[alamogunr]

http://castboolits.gunloads.com/show...-65X54-Belgian

Surprised to see a thread I started asking some of the same questions referenced here. Practically everything I know about reloading the Argentine Mauser is in that thread. As far as dies, as I said in my original post, I acquired both a set of Hornady and RCBS dies. Somewhere in there I got a set of Redding dies that incl. a trim die. The trim die gets me started forming from .270 Win range pickup(I don't own a .270) but I mostly use PPU brass. Since I've already got the set out, I size with the Redding die.

I've only got the one Argy but if I ever run across a 1909 and have the $$, I might get another.