I'm new to PRS so take my experience with a grain of salt. I can't comment on the others because I've only used Shooter (Android). Out to 600 it was dead on. At 800 it was .4 mil high but that could've been my entered velocities. I shot the 800 yds at 65 F and my velocities were recorded at...
No, but I've seen it on TV. I belong to Abe Lincoln Gun Club just west of Springfield. We only have ranges out to 200yds so I do my long range at two local farms.
New to this site, but joined the scout site on 3/11/2015. Mostly a lurker but I did post five times on the old site to get StockDoc to install a KMW Loggerhead on my B&C Medalist. Great guy to deal with and does excellent work. I'm not a long range competition shooter, but do it as a hobby...