Milton,
I never believe a MEC fixed weight charge bar. The only one that I have that is right on the money is the 1/2 oz .410. The 1 ounce bars cheats the load. The 1 1/8 oz. bars only throws 1 1/16 and I have three of them. I use the adjustable bars for small shot. The powder bushing chart is off also. It looks as if to avoid suits they make everything throw a lesser amount.
For hevi shot, large shot, and buck shot I bought an electronic food scale from Walmart (chinese I hate to say) and I measure out each load. I load custom buckshot loads for the 12 ga 3.5". Odd ball stuff like 18 #1s with 8 or more #3s. 2 buck with 4 buck, etc. Anyway, I put 2 1/4 ounces of whatever I want in there. They will rock a deer.
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