I usually run a ballistics calculator and check what the maximum Point-Blank-Range might be for my chronographed load and a specific target size (9" deer, 12" elk)....then zero the scope at the recommended distance. Then I just hold where I want the bullet to land if within that range. For example, shooting a 140 grain Accubond (BC of .496) out of my .270 Winchester at 2970 fps yields the following results for a 9" target at 5,000' of elevation (where I usually hunt):
Near Zero: 22 yards
Far Zero: 297 yards
Minimum PBR: 0 yards
Maximum PBR: 350 yards
Sight-in at 100yds: 3.55" high
So I just hold on the target with my crosshairs out to 350 yards. If I only have a 100 yard shooting range (that is criminal!) I can sight-in 3.55" high (3 1/2" is close enough) at 100 yards and call it good. Of course that 350 yard shot requires a steady rest and a non-moving target (for me anyway). In the typical field position I usually find my self in I try and keep the shots closer...much closer if possible. Last couple of animals taken where right about 50 yards.
Near Zero: 22 yards
Far Zero: 297 yards
Minimum PBR: 0 yards
Maximum PBR: 350 yards
Sight-in at 100yds: 3.55" high
So I just hold on the target with my crosshairs out to 350 yards. If I only have a 100 yard shooting range (that is criminal!) I can sight-in 3.55" high (3 1/2" is close enough) at 100 yards and call it good. Of course that 350 yard shot requires a steady rest and a non-moving target (for me anyway). In the typical field position I usually find my self in I try and keep the shots closer...much closer if possible. Last couple of animals taken where right about 50 yards.
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