Thanks everyone for your help I tried the magnum blend today and it was great at thirty. But only had maybe 7 in vitals at 40. With magnum blend 4,5,6
I wouldn't worry about shooting those vital targets. Aim for a dot at 30 yards and then draw a 10" circle around the densest part of the pattern. Count the pellet hits and note it on the target. Adjust your sights so the dense part of the pattern is centered over the point of aim. Shoot again and note that pellet count in the 10" circle.
Rule of thumb is a minimum of 100 pellets in a 10" circle at any given range. If your 30 yard count is good, step back to 35 yards and shoot it again. Keep doing this in 5 yard increments until your no longer able to consistently put 100 pellets in the10" circle.