OBP canister powder question?

[patman01]

I've searched and searched and am trying to find out what is OBP 462 powder? Found one reference to it for some 9mm load from Armscor, but can't seem to locate it's equivalent.

Any guidance would be awesome!

Thanks!

[footpetaljones]

From the limited amount of info I could find, it appears to be an OEM powder.

[turtlezx]

its old black powder for a 46 cal double barrel
OBP 46 2

[Mica_Hiebert]

we use obp 372 for 22 lr at work and theres no information for it online either. good luck

[patman01]

its old black powder for a 46 cal double barrel
OBP 46 2

It's definitely OEM powder (OBP = ball powder from St Marks), its definitely not black powder. I found 1 reference to an Amrscor 9mm load data for it, but nothing to substantiate it.