Sat morning sub caliber chores

[thekriebles]

Never heard of a 10mm Magnum.

a pistol cartridge from the early 1980s

 

[Tommie]

a pistol cartridge from the early 1980s

Isn’t that just called the 10mm?

 

[457ciSBC]

Isn’t that just called the 10mm?

No, it is not the same as 10mm, the 10mm magnum case is longer.

 

[457ciSBC]

No, it is not the same as 10mm.

The 10mm Mag is it own deal; the 10mm and 10mm Auto are the same, but not exactly the same as the Bren 10. The original Bren Ten (early Sonny Crockett) was the wildcat, 10mm Auto is the SAMMI approved version. However, you will ruin a virgin 10mm Auto case if you try size it in Bren 10 FL die.