I wil be hopefully squeezing off the first round as soon as I can see the 500yd plate in the morning. Temps should be in the mid 70's and hopefully no fog. Once I verify the zero, then I will shoot at a target mounted to a fixed position on a tall board frame from there on out. My coheart in crime and I got the 270 AM shooting pretty well last trip out at 200 yds., after a little seating work. I plan to adjust the scope to zero at 500 and then go from there, since I only have a limited number of rounds left of the bunch. I should be able to shoot three shots each at one hundered yard intervals out to 1000 yds, and if things work out possibly even a little further. Will this be enough to represent a valid test, or will I need to have more shots per range? I figure that with the temps being what they are around here, and the mirage as well, that we will only have about 2 hours of good conditions to get this done in. I realize that practice is always the key element, but this time I have to make the most of the time I have and keep things moving. Any ideas or suggestions are more than appreciated.