Re: ELR Ballistics 'Truing' help
I've thought about using banded BC's but haven't tried it yet. I am using 76grs H1000, in Remington cases that are fully prepped, my MV is 2,940 fps on the chronograph at 15 ft and I input 2,970 fps into my program and this got me dialed in very well out to 1,000 on paper.
As far as the rangefinders go I have a cardboard sheet that is about 24"x24" covered with reflective tape that I use. I measured the 1,080 yard with this. For 1,139 yards I ranged the cardboard at 809 and then ranged up to the milk jug from that at 330 yards, I tried to keep everything in strait of a line as possible. I somehow got a range off the rock at 1,555 and was surprised I even got it. There very well could be a ranging error in this one. I checked all the ranges on google earth and 1,080 yard shot measured 1,079 yards, 1,139 was 1,134 on google earth and the 1,555 was 1,547 yards according to google earth.