I was loading and shooting 3/4 ounce 12 gauge loads several years ago and they shot fine.
I went a step further, actually lesser, and started loading and shooting 1/2 ounce 12 gauge loads.
I had them tested about 8 years ago by Tom Armbrust. Pressure around 5500 psi and the speed is about 1350 fps.
I use 14.0 grains of Alliant Extra Light powder, Claybuster CB0175-12 pink wads for 3/4 ounce with a 0.620" diameter (20 gauge) by 0.135" thick nitro card in the bottom. Remington Gun Clubs, STS's, Nitro Golds and/or Win AACF hulls. Any available primer.
I get those nitro cards from Craig Smith of Circle Fly Wads in PA.
They crimp and shoot fine. Sound OK too. Pretty much no recoil.
A very good trap shooter was at the club and usually shoots 25 straight. I had him try a box of my 1/2 ounce loads, #8's. He got 24 out of 25 and said he couldn't blame the miss on the ammo.
I've probably loaded and shot around 20,000+ of them in the last 8 years.
PS: I shoot with Kutter above who shoots his 5/8 ounce loads. Amazing how well they shoot. And him.
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