8mm Nambu Cartridge Conversion

[sheepherder]

Originally Posted by Sieger

By the way, if you get on just about any of the major powder manufacturer's sites, you will find that they claim just he opposite; that being, that their newer powder burning rates are exactly the same as their older powder burning rates.

Then they are lying out their ass.

Here's scans from two Speer reloading handbooks; the first is the 1987, the second is the 1979. I like the older manuals because the newer ones do not have 30 Mauser, 30 Luger, or 8mm Nambu at all...

Edit: Third pic is a note from the 1991 Hornady Reloading Manual on the powders they list...