Re: 308 farthest shoots
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: LWILLIAMS</div><div class="ubbcode-body">All of my targets are measured out with a 1" leica robotic total station since I am a surveyor. I see a lot of people claim 400 yards then when the targets are lasered they are closer to 200 yards. Easier to measure targets first and know where your at than to shoot and look at what the ballistic app says your comeups are and getting range from that.</div></div>
I did some shooting last month outside of Vegas with a 24" 308, and attempted (unsuccessfully) some shots out at a mile. Poor terrain and an inability to see splashes kept me from hitting anything at a mile, but I did succeed in making consistent hits at 1250 yards. Given another crack at it, I'm fairly certain I could get on target or very close to it at 1760.
Better than screwing around with a LRF is to simply take your GPS device or phone and measure the distance between two points to determine your desired shooting range. If you have the luxury of a large impact area to set up targets, then set the firing position as the initial coordinate, then move out until your distance reading is set to 1760 yards and prepare your target at that spot.
GPS accuracy of 2-3 yards on either spot gives an error of less than 10 yards out to any distance you want - not quite as precise as a perfectly accurate laser rangefinder bouncing off of a reflective target, but even at those distances a 5-10 yard error in range is only going to be about 2-3 feet of vertical shift. In comparison, a 10 FPS jump in muzzle velocity will give you about 15" of vertical shift at that distance. First-round showboating is meaningless, I'm simply hoping to land my first round within a mil or two of the target and compensate for wind from there.