Thread: Jim Shockey fff
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Old August 10, 2010, 04:01 PM   #16
thallub
Senior Member
 
Join Date: November 20, 2007
Location: South Western OK
Posts: 3,112
Quote:
To get good results with it seems like you have to do exactly what the folks that make it say not to do.
App does not warn against compressing their powder. I've used about 75 pounds of JSG over the years with no problems. APP compresses the stuff to get their sticks.

From the APP site:

http://americanpioneerpowder.com/loading.html

Quote:
Seat the projectile so that it is firmly against the powder. No further compression is required or recommended.

JSG is a very clean powder, much cleaner than Pyrodex or 777. It does not leave that awful crud ring like 777 does. A 250 grain SST bullet in the tight fitting red sabot along with 100 measured grains of 3F JSG gives 1,745 fps when fired from the barrel of my .50 Encore. SD is 14 fps.
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