8mm Nambu Cartridge Conversion

[Sieger]

Originally Posted by sheepherder

I haven't had any 9mm problems...I don't use True Blue (never even heard of it)...

Only problem I have had in the last year is getting powder...And primers...



As stated above, it is 1.244"...A rare instance of a book value being right on the actual value...

Hi,

I was looking for the bullet length, not the cartridge O.A.L.

My comments regarding powder selection above are still on exact point; though brainfarted in from another thread. Frankly, I'd be surprised if you get accurate groups out of Red Dot in this case and caliber, though I'm sure the pistol will function properly with the correct charge.

Please note that both the Nambu pistol and Arisaka rifle use the old British style Medford rifling: shallow, wide and with grooves usually oversized. This means that you can use oversized diameter bullets and still get away with it. .323 lead bullets are often used in the Nambu pistol, and quite successfully. Also note that when compared to a Luger, for instance, the Nambu has quite a bit of free bore built into its chambering.

Sieger