- Apr 30, 2016
How do you set and acceptable SD? Is it a fixed number, or a dependent upon cartridge? I may be way off base, but I've been using a SD of 1% of the average as the upper limit. For instance, a 3000 AVE velocity of a 5-round string would have a 1% SD upper limit of 30. I strive for a goal of .005% of SD. Should I not base it off AVE velocity? is under 1% good for a TOP end SD?, should I ditch the math and go with set numbers, (like an SD of 10)?