Used a Lee 223, 55 grain mold and powdered coated with choice of powder being H4198.
I am attempting to work up a good accuracy load and it looks like the gas checked, powdered coated round so far is the winner, just need to dial in the powder weight. Ar is 1-8 twist 223 Wylde. Over all length 2.160"
To see if consistency was an issue, the un-sized non gas checked bullets were sized twice with poor results
I also tried out Fortune Cookie 45LC's 38 special 2 ball load, and it performed well under 10 yards.
Cheers!