10

W

ARNING!!!!!

DO NOT

 USE STEEL

 CASED

AMMO IN

THOMPSONS

MODEL OF 1928A1 OR M1 CARBINES

A new warning from Kahr/Auto-Ordnance is that they have seen alot of blown up barrels on their

semi-auto carbine Model 1927A1 and M1s. The problem appears due to the ammunition having

unreliable loading characteristics due to variance in the steel shell weights. This variantion can

cause a cartridge with a light power charge and a heavier shell weight to pass quality inspection, yet

cause a bullet to not fully leave a 16" barrel. Also, the steel shell will not seal as well to the chamber

walls, compared to a brass cartridge, which can further complicate the problems.

This does not appear to be a problem in pistol barrels, but is a problem for the 16" long barrels. It

is unknown if it is a problem for 10.5" barrels. So ALL Thompson shooters should be aware of this

problem!