Seems like these two things are essential. I've been doing a lot of research trying to find the right solution to moving out to 600 yards/meters with my .308 LTR. At first, I thought I can just learn mildot/TMR ranging and be done with it. But the Achilles heel of that system is not knowing the exact size of the animal. From other posts on this forum and doing my own calculations I could see that the error could end up being +-10%. That can easily add up to a miss or a poorly placed shot at the ranges where .308 ballistics drop off drastically.
So now rather than just finding the right scope to fit this rifle it looks like a new rangefinder is going to be essential. If I understand it correctly, accurate shot placement at 400+ yards (and let's leave wind out of it for the moment) requires:
- Knowing the range to the target as accurately as possible (which can't be done on an elk, deer, or antelope without a good rangefinder)
- Having a field tested drop chart for the desired ranges
- A quality scope with good tracking and repeatability, target turrets (and optionally) a mil-dot or TMR reticle for a quick correction shot (or let's say the animal runs 40 yards closer or farther and requires a follow-up shot)