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Discussion Starter #1
I came accross about 5Lbs of this powder from a family members house.
I have no load data for it. I had been told this was used for a HDCP powder.
If anyone could direct me to some load data, it would really help me out.

Thanks Jason in PA.
 

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Win AA hull, Win 209 primer, 25 grains 473AA powder, 1 1/8 oz of shot, WinAA12 wad, 1255 fps, 9500 lups. This info is from and old box of Winchester wads. HMB
 

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Rick,

Do you have any data for 12 Ga. 1 oz. loads using 473 in old style AA hulls? Looking for around 1200 fps.

Thanks,
Wayne
 

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Discussion Starter #4
Found this online.

WIN - AA Hull
WIN- 209
23.5 gr -473AA Powder 1200fps @ 8500 lup
WIN AA12 Wad

I will be loading a AA or STS Hull with a windjammer wad
going to start at 21 gr with a cheddite primer. 1 1/8 oz


Jason in PA
 

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1977 Winchester-Western ball powder loading data. It states in this book that 452AA is the factory powder in 12 ga. AA loads, and 473AA is the factory powder in the 20 ga. AA loads. The only 1 oz. loads listed use the 452AA powder. There are some applications for 473AA powder in the 1 1/8 oz. loads however. I think when this book was published, the theory was throw as much lead as possible. Loading data in AA hulls up to 1 1/2 oz.
 

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I loaded 473 powder for 1 1/8 oz loads many years ago. It was a good powder but I remember serious bloopers when I tried my reloads at temperatures around 20 below zero F.
 

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Discussion Starter #9
I try not to shoot in the cold weather, so the bloops shouldn't be a problem
I am only loading this for practice anyways. It was free so I should shoot it. Thanks to all the replies on this subject.


Jason in PA
 
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