This is cut and pasted from form in another thread
Elevation. The idea that you’re going to be able to pull a kestrel or ballistic app out for every shot on animals is ludicrous… Unless you give up ton of opportunities. That’s not my goal. My goal is to be able kill every animal I see regardless of distance or time. And once you decide to shoot, every single thing that pulls you out of the scope, decreases the likelihood of killing that animal, or increases the likelihood of a rodeo or losing the animal with a wound.
Reducing as many variables as possible increases the hit rate. However, you have the time that the animal gives, and the time that it takes you personally to make the shot. What this is about is decreasing the amount of time you need to make a shot. The below (and the corrected versions) will you get you within .1 mil out to 600’ish yards with the vast majority of gun combos.
Memorize a base.
This is mils
100- 0
200- .5
300- 1
400- 2
500- 3
600- 4
That’s your base. Notice, every 100 yards is a mil. That means every 10 yards is .1mil. That’s critical.
Now, take the above and apply it. Target at 530 yards. Take the first number and take 2 off= “3”. Then the last two becomes the second number, “3”. The drop is 3.3 mils.
Round up or down as appropriate for the last two numbers.
416= 2.2 mils
373= 1.7 mils
564= 3.6 mils
310= 1.1 mils
598= 4.0 mils
The base works for standard rounds- 2,600-2,800fps MV with BC’s between .4-.6. That’s most gun/bullet combos. However, it doesn’t cover them all.