Norma gunpowder?

[Paul5388]

Jack is right about Alliant powders being the same as Norma (also RWS powders). The only exception is the coating, but MRP data is pretty close to RL-22 (which isn't too far off of N205 data but it won't generate the velocity N205 would generate).

Somewhere, I have a copy of a letter from Hercules that comfirms the correlation between the RL series and N series.

My impression is there isn't much difference between the performance compared to H4831, AA 3100 and IMR 4831.

BTW, if you look on the bottom of the RL-22 bottle lable, it says "Made in Sweden".

I don't know how to upload a file here, but if you're interested in the letter I can attach it to an email. File size is about 32K.

I suppose I should have mentioned the RL series is double based and may show some temperature sensativity due to the nitroglycerin content. Nitroglycerin gets less sensative the colder it gets. The Extreme powders available are single based (no nitroglycerin), which would explain somewhat the insensativity to temperature changes.