Winchester 473AA in 357 Magnum?

[Eagleye]

Has anyone tried W 473AA Powder in light cast loads for the 357 magnum? If so, would you care to share a recipe? I have some left and would like to use it up if it will work. Thanks Eagleye.

 

[NAA]

Wow, Win 473AA, now there's a powder I haven't heard about in quite awhile. Had to check my reloading log books [way back to circa 1990 ]. I used that powder in a .38 Special load:

4.7 gr powder, 158 grain hard cast lead bullet, Win small pistol primer for ~ 850 fps. My load data source at the time was the Speer #11 manual, page 400.

Also, used that powder for:

9mm [ 4.1 gr, 120 grain lead conical bullet for ~ 950 fps, Speer #11, page 389]

.44 Mag [ 7.5 gr, 240 gr lead SWC, CCI 300 primer, for ~ 920 fps, Speer #11, page 427]

.45ACP [6.5 gr, 230 gr FMJ, Win large primer, for ~ 850 fps, Speer #11, page 438]

.45ACP [5.0 gr, 200 grain lead SWC, Win large primer, for ~ 800 fps, Speer #11, page 435]

Also used Win 252AA powder for some 10mm pistol loads in 1991 before the loading manuals had any data for the 10mm. My source for that one came from article in the 1991 Guns & Ammo annual.