Re: how many use custom turrets?
I shoot long range almost daily in South Texas and don't use custom turrets for two reasons. One is that if I change my load for one reason or another, say jumping up to a 168 gr bullet for elk instead of 130 gr for deer in my STW, the turrets are no longer accurate. The other, and most importantly, is that from one day to the next (or one minute in Texas) conditions change and can drastically affect POI at long range. For instance, Tuesday I shot a 5 shot group at 1K with my 260 and put all five in the 10 ring, 3 in the X at 27.5 MOA up. That was using my Letfly app for iPhone. The next morning, the temperature rose 15 degrees, humidity jumped 40%, wind changed from 11 to 5 oclock, and pressure rose from 29.3 to 30.04. My app calculated that 26.3 MOA was necessary with 1.5 MOA drift. My first two shots were on the right edge of the X ring 1" high. Had I used custom turrets or a chart, I would have been 15" high based on my previous dope. Mule hunter is right, print off charts that will correlate to conditions as closely as possible in case electronics fail, but these apps are unbeatable. And they're cheap!