Re: Shooting @ 600 for the First Time?
At 600 yards a 2 1/2 mph wind error can cause as much as a 1 MOA deviation with your load. I would look closely at your vertical dispersion to get a rough idea of your non wind shooting variables. If your vertical group measurement are cocsistant with your 100-200 yard groups, it's a decent indication that you wind dope is of for the fliers. If you plan on progressing much further out than 600 yards, I would consider changing your bullet to the 175 SMK. The 168, due to the steep boat tail design, is believed to exhibit stability issues at the longer ranges.
"Let us speak courteously, deal fairly, and keep ourselves armed and ready"-T. Roosevelt