Pellets per ounce (from chart of manufacturer)
#4 = 107 per ounce
#5 = 180 per ounce
#7 = 342 per ounce

Nitro's breakdown in the shell is 25% - #4, 25% - #5, and 50% - #7

So in a 2 oz load of 4X5X7's....There are approximately
#4=54
#5=190
#7=342....Total 586 pellets+-.

Therefore 50% of the pellet count is # 7's. This will give one more holes in paper, but what does it do for extended range, since # 7 loose there energy much quicker that the larger pellets???