Looking at other 10ga. guns found on the same stock book page, the pellet counts ranged from a low of 175 to a high of 210. Unless specifically specified, normally Parker choked their guns full and full and let the customer open the chokes at a later time. Parker used 1 1/4 oz. of shot for the 10ga. patterning. You could figure out the amount of pellets in a 1 1/4 oz. load for size 8 shot (Tatham) shot. Take the total amount of pellets in the shell and the amount of pellets in the 24" circle and do the math percentage.
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