Mauser 13.25mm Ammo
1 - 3 of 3 Posts
Un-Obtainium-Ville, that's where.
Individual cartridges do come up from time to time, and are usually Dewat (NO Powder, primers struck).
Cases can be made from .50cal BMG, ( same head diameter), using the shoulder for headspace purposes after forming and trimming.
One Poster several years ago modified .50 cases by turning down the head, and screwing on a ring to form the semi-rim; another swaged a brass ring into the BMG's extractor groove, then tuned the new Semi rim and groove...one user here in Aus. turned the cases from solid brass bar, then annealed and formed them ( I have several examples,the designs, plus a liberal supply of Bar, and Dies...I bought his whole set up).
For Movie Industry Putposes (WW I Films) we make blanks from untrimmed .50 cases, formed and loaded. They work fine, as the extractor can still grab the .50cal rim firmly to extract ( same as for Ball loads)
Your best bet is to get some dies made ( CH4D or one of the other "large Calibre" die suppliers) and simply form .50-BMG cases, trim them, and then
Make Projectiles from .50BMG Ball, with a THin wall brass tube from K&S Tube ( .500 ID,) to bring the OD up to about .525" (correct for the 13mm T18).
The other solution is to get a CNC operator to turn up a few hundred projectiles from brass bar, using 9/16 rod. The General shape is about the same as a .50BMG projectile, except for the max. diameters.
BTW, original T18 ammo , besides being rare and valuable as a collector's item ( Only made April 1918 to November 1918, by Germany, with some months rarer than others,) it is Berdan primed ( size also unobtainable) and corrosive.
WE have Four T18s in our Movie Inventory, and only three original rounds ( One Live, the other two deacts.)...all our ammo for them is ".50cal" made.
Regards,
Doc AV
AV Ballistics Film Ordnance Services.
Individual cartridges do come up from time to time, and are usually Dewat (NO Powder, primers struck).
Cases can be made from .50cal BMG, ( same head diameter), using the shoulder for headspace purposes after forming and trimming.
One Poster several years ago modified .50 cases by turning down the head, and screwing on a ring to form the semi-rim; another swaged a brass ring into the BMG's extractor groove, then tuned the new Semi rim and groove...one user here in Aus. turned the cases from solid brass bar, then annealed and formed them ( I have several examples,the designs, plus a liberal supply of Bar, and Dies...I bought his whole set up).
For Movie Industry Putposes (WW I Films) we make blanks from untrimmed .50 cases, formed and loaded. They work fine, as the extractor can still grab the .50cal rim firmly to extract ( same as for Ball loads)
Your best bet is to get some dies made ( CH4D or one of the other "large Calibre" die suppliers) and simply form .50-BMG cases, trim them, and then
Make Projectiles from .50BMG Ball, with a THin wall brass tube from K&S Tube ( .500 ID,) to bring the OD up to about .525" (correct for the 13mm T18).
The other solution is to get a CNC operator to turn up a few hundred projectiles from brass bar, using 9/16 rod. The General shape is about the same as a .50BMG projectile, except for the max. diameters.
BTW, original T18 ammo , besides being rare and valuable as a collector's item ( Only made April 1918 to November 1918, by Germany, with some months rarer than others,) it is Berdan primed ( size also unobtainable) and corrosive.
WE have Four T18s in our Movie Inventory, and only three original rounds ( One Live, the other two deacts.)...all our ammo for them is ".50cal" made.
Regards,
Doc AV
AV Ballistics Film Ordnance Services.
Danke Doc! I gots me a mission now!
1 - 3 of 3 Posts
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