If you want to duplicate MK262 loads, CFE223 is the powder that will do it easily. I used Hornady 75 gr bullets and got 2768 avg for 10 shots with an extreme spread of 20 and an SD of 9.03 Out of my PSA 16 inch middy. This is a 5.56 load from the Hornady manual...and not maximum. I will try shooting for accuracy another time. I also got similar results with AA 2460 powder. Did not have any 77SMK on hand to test. Waiting for a sale.....
There are no accidents; only ignorance, mechanical failure, and acts of God! I have loaded over 6 million rounds in the last 5 years and STILL have not seen it all!
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