Small grey spherical mystery powder.

[Houndog]

IF it came from Winchester shotshells it probably is something close to Super Tatget which happens to be a VERY fine light grey ball powder. Winchester reps used to tell us they used Super Target in their factory AA 12 guage target loads, in fact they said they used the same thing as the canister grade powder sold commercially.

[jonp]

" But I think it would work."
Is that another way of saying; "It looks good from my house"?
Ducking and running
Bill

No, that is another way to say "hold my beer and watch this"

[xringshutr]

That's $480 worth of powder......give or take ($15/lb). Work up the velocity comparisons according to the guidance from runfiverun and find the APPROXIMATE burn rate based upon velocity and other pressure indicators. Shoot it in CONSERVATIVE loads for the cartridges you have done the testing with, then ENJOY. I've done this with powders for the .223 Rem that were blended together (3 powders) but all were loaded with 55 grain bullets. Worked it up till I obtained velocities that matched approximately AA2015 (slightly slower) and now use the powder for easy shooting 3 gun loads that shoot 55's at 2700 fps. 1" at 100 yds too. That's darn cheap shootin' for LOTS of powder that cost me $2/lb. Got enough for my lifetime and then some.

[762 shooter]

If you are afraid of it........dispose of it.

If you understand scientific principles...............use it.

762

[TES]

Boy this one ran wild...just wanted to see if anyone recognized it. I load commercially and intend to start my ladders and use the powder.

[HABCAN]

No one has mentioned the old-fashioned method: from a central ignition point lay equal-length SMALL NARROW continuous tracks of this powder and an known powder about 24" long in a grooved board, light the central junction and see which powder burns to its end first. When you get a photo-finish, you know what you've got for burning rate.