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djohns28
09-08-2020, 10:30 AM
I bought a used Mec 600 28 gauge press from an estate sale. It has a sticker on the powder bottle with a hand written recipe as follows:

Bushing #23
3/4 oz Shot 1295 F.P.S
15.5 gr. Unique Powder

I'm loading Longshot and dropping powder with a different measure. It is dropping 3/4 ounce of shot but I can't find any data for 15.5 grains of unique in 28. I'm not a fan of unique from having used it in pistol cartridges. I'm using AAHS hulls and SG, SG2, or claybuster wads depending on what size shot I use or what I plan to do with it. I'm more curious about what hull and wad this recipe may be for.

John Boy
09-08-2020, 11:20 AM
https://www.trapshooters.com/threads/28-ga-unique-powder.149463/

djohns28
09-08-2020, 11:47 AM
https://www.trapshooters.com/threads/28-ga-unique-powder.149463/

I've read that thread. I've seen some data calling for 13.5 and 14 grains of powder but 15.5 seems hot. I was figuring straight walled hulls may allow for that extra powder but I'm drawing blanks.