[Moondoggie]

My powder for my .40 S&W IPSC loads is WSF (Winchester Super Field).

I recently bought my first 8 lb keg from a local shop, been buying in the 1 lb jugs in the past.

This keg was probably around for awhile at the shop, it has an "older" style label with a yellow background vs. the newer Win logo. I didn't pay too close attention to the label. I didn't notice until I got ready to use the new keg that the label actually reads "SUPER FIELD" with the letters "AA" centered below. :what:

I can't find any reference to 'SUPER FIELD" and "AA" in any of my reloading manuals.

Can anybody tell me what's up with this?

Are they the same powder, or do I need to start into this 8 lb keg with powder puff quantities and chrono my way up to what I want?

Yeah, I sweat the details a lot with stuff that goes BOOM!

Any info/insight would be greatly appreciated.

[shc1]

I think you'll be ok. Before continuing give them a yell for safety’s sake.

http://www.wwpowder.com/propellants/

[agd1953]

this is from the winchester link above and it looks like the AA is a registered trademark of winchester. Looks like its what you wanted to start with.

Super-Field® propellant is the propellant of choice for Winchester 20 gauge AA® Target Load and 12 gauge 3 3/4 dram equivalent Super-X® load. WSF is an ideal choice to maximize velocities in 12 gauge 1 1/8 oz. and 1 1/4 oz. loads. Super-Field also performs well in 38 Super, 9mm and 40 S&W pistol loads. Excellent propellant for fast shooting action pistol applications.

There is also reloading data for WSF at the above site

[Moondoggie]

Thanks for the responses!

Looks like Winchester is located very near to The Bullet Hole in KC (next door in the Hogden Powder bldg???) where I shoot IPSC indoors on Fri nights. That's interesting.

Very informative website...thanks again!