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Discussion Starter #1
I came across about 4 lbs of Winchester 473AA powder at a family members home.
I can not find any reloading data for this powder.
Who has used this powder and what is a good recipe for standard 1oz loads.
I know I could be a mad scientist and start low at about 16-16.5 grs and go from there.
Here is what I have
STS/NITRO hull, tgt12 wad, cheddite primer or AA hull, windjammer lightning wad
cheddite primer.
Just looking for a good practice load thats all.

Jason in SW/PA
 

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pigeon101:

The data provided by 85TTR is correct for the 1 1/8 ounce load cited but you asked about one ounce loads.

Winchester didn't publish one ounce data for 473AA. Their one ounce loads from that era specified the faster burning 452AA powder.

sissy
 

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I think Tom Ceretto listed some formulas for this powder in the new issue of NSSA magazine this month. I don't have the magazine with me here at work or I would send you a copy of the article. Maybe you could find a copy of it at your local club.

m
 

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This is a great powder for 20's Win use to say that it was the same powder they used in their factory 20 target loads.

I was sorry that they stopped making this powder.

Ron
 

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Discussion Starter #5
Thankyou for the data info on the powder. I will be playing with the charge a little on the light side of .23 grns maybe even a little less than that.
Just don't want pressures to high but don't want any squib loads eighter.
Thanks Again.

Jason
 
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