Winchester AA Plus powder.

Joined: November 13th, 2016, 7:50 pm

November 23rd, 2016, 9:24 pm #1

Many years ago when we had a major powder drought. Trying to tap my so-called friends to at least give me some to weather the storm proved fruitless. Very disappointing. (now referred to as frenemies, but I digress)

A real friend & I discovered a small cashe of Winchester ball powder called AA Plus. I have still not found any loading data for AA Plus and I have ancient reloading books.

Anyone try/use this powder? Comments?
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JB
JB

November 24th, 2016, 2:39 am #2

Posted on a reloading site.
Posts: 13,145
I used the AA Plus left after shotshell trials in .38 Special, on the grounds that the ammo would be shot in .357 magnum revolvers so there would be a large safety margin.

Most at
158 gr lead + 3.6 gr AA+ = 768 - 816 fps depending on bullet whether wax-lubed cast or moly coated, and gun whether 4" Colt or 5" S&W.

NOT A PUBLISHED OR PRESSURE TESTED LOAD, JUST ME AND MY CHRONOGRAPH.

Some were using BE powder load data as a guide starting 10% below starting loads and working up with a chronograph.
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Joined: August 21st, 2013, 3:31 pm

November 24th, 2016, 5:58 pm #3

Many years ago when we had a major powder drought. Trying to tap my so-called friends to at least give me some to weather the storm proved fruitless. Very disappointing. (now referred to as frenemies, but I digress)

A real friend & I discovered a small cashe of Winchester ball powder called AA Plus. I have still not found any loading data for AA Plus and I have ancient reloading books.

Anyone try/use this powder? Comments?
Found this on a reloading site, not my personal use.

I found Win AA Plus to be a good powder for .38spl Wadcutter loads. Very accurate and good load density (bulkier than other similar fast burning powders)

Use the same data as for the old Hod. Trap100 and Win452-AA. The AA+ was intended to replace the AA452, but as JW said, it was not popular with scattergunners who have gravitated to WST and Clays as powders of choice. WST is slightly less bulky and very similar in burn rate/applications.

In any case, it should not be confused with Win Act. Pistol (WAP), WAP is much slower burner. WAP was very similar to WSF, hence they discontinued it (WAP) in order to trim the offerings.

Also, one post that he used the BE data, but reduced it, started low and worked up with a chrono.

There are plenty loads for shotgun shells, what this was primarily intended for.

Hope this helps

Also, might contact Winchester for add. info.
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