Revolutionary Revolver Ammunition!

During yet another sleepless night I had an amazing idea for a new revolver cartridge. Make 9mm (9×19) ammunition with a slight variation, use a rimmed case. Being as this round would use the same load and bullets as a standard 9mm (just with a slightly different case) they should be relatively cheap to manufacture and tool up to produce. This could translate into less expensive and less bulky ammunition for revolver shooters. Since the bullets and loads would be the same revolver shooters could take advantage of the constant improvements in 9mm self-defense ammunition. The smaller case would mean shorter cylinders allowing for smaller, more concealable firearms or slightly longer barrels in the same sized firearm. It would remove the need for moon clips.

Perfect solution!

I mean after all it was done previously for .45 ACP with the .45 Auto Rim.

9mm Federal Rimmed

Actually, it has already been done for 9mm as well. In 1989 Federal released the 9mm Federal Rimmed cartridge. It was exactly what I was thinking about, a 9mm cartridge with a rimmed case to function properly in revolvers without the need of moon clips. So what happened and why have I never heard of this round before? Unfortunately, the only manufacturer producing firearms for this caliber was Charter Arms. The chambered this round in their Pit Bull of the time. Unfortunately, Charter Arms went out of business just after the cartridge and the revolver that chambered it was released. So, Federal discontinued manufacturing the cartridge and the idea died with it. Here is a link to a little more information on the cartridge: http://www.ammo-one.com/9mmFedRim.html

There is one more drawback to this cartridge. It is not a technical issue so much as it is a legal one. The 9mm Federal Rimmed will actually chamber in .38 Smith & Wesson revolvers (not .38 Special, .38 S&W). The difference in max pressure between these two rounds (35,000 PSI for 9mm) means should someone do something stupid and chamber on of these rounds in their antique .38 S&W they are likely to get hurt and their firearm would likely be destroyed.

I still think it is a good idea. Maybe one that was a little ahead of its time.

Take care and God bless.

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