Similar or Related Calibres
 
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Re-Loading data and dimensions for .25 ACP (.25 Auto) calibre

The cartridge was introduced in Europe as the F.N. Baby Browning, later (1908) it was introduced in the United States as the, almost identical, Colt manufactured, .25 Vest Pocket pistol. These two pistols has been copied by many manufacturers. The .25 Auto has a high velocity for a small cartridge, but stopping power of the full metal jacketed bullet is low. The .25 auto pistol is popular with the ladies, because of it's small size and low cost.

Disclaimer... This page is a collecting point for fragmentary information that comes to light during my wanderings through my old notes. As a result it may be incomplete or even contain some incorrect information. It would be unwise to rely on this page of information until this warning notice is removed.

Date... Originator...
Bullet Dia... Main Usage...
Die Set... Intended barrel length...
Primer... Max overall length...
Trim Case... Max Case length...
Crimp... Bullet Seating...
Shell holders... RCBS... Lyman... Pacific/Hornady... Bonanza...

Dimensions of .25 Automatic Colt Pistol Round

Case Dimensions ("W" = Water capacity)

Bullet
Type
Bullet
Wt. Grains
Gas
Check
Powder
Type
Powder
Weight
Grains
Powder
MAX
Grains
Pressure
C.U.P.
Pressure
lb/Sq in
Muzzle
Velocity
ft/sec
Muzzle
Energy
ft lbs
TKO
Jacketed1110000IMR 222233.3 Gr33.4 Gr44,44455,5556666777788

Notes

 Originated... 02 February 2007,
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