12 ga trap loads

[nessy357]

Returning to trap shooting from many years ago(30 +), I dug out my Mec600 Jnr reloader, and Winchester 473AA ball powder, which is now obsolete ?
A google search didn't uncover much ?
Anyone know where I can find the bushing # for this powder ?
Cheers nessy.

 

[Handloader B.C.]

473aa

The Lyman shotshell book #3 says you need to use 22.5 to 23.5 grains for the 1 1/8 ounce type loads. That said, I would try a number 28 or 29 bushing. Should give you what you want.
Regards
Don M.

 

[nessy357]

Thanks Don, off to make some shells
Cheers Bob