Posted: 10/28/2006 2:09:20 PM EDT
[#4]
For those of you using either a Garand or an M1A, your trajectory studies are pretty simple. Just memorize the following numerical combination: 3, 3, 4, 4, 5, 5, 6, 8, 8.
What’s that?
Those are your rear sight’s “come-ups” out to 1000 yards using standard M2 150 grain FMJ ammo for your .30-06 Garand and the standard M80 147 grain FMJ in 7.62x51/.308. Learn those come-ups cold, and you’ll be on target all the way out to 1000 yards, as long as you know (1) your rifle’s initial sight settings and (2) the range to your target.
How?
Simplicity itself. Assume you have a 300 yard zero on your rifle and you know your target is at 400 yards. Just rotate the left dial on your rear sights three clicks up (rotating the dial back towards you, or, in other words, clockwise), and fire your shot by the numbers.
Bang, hit, next target. Easy as pie.
Note from Cabinboy: It helped me to memorize the come-ups with the associated ranges, like this:
100-200 3 200-300 3 300-400 4 400-500 4 500-600 5 600-700 5 700-800 6 800-900 8 900-1000 8RWVA BlogETA: My mistake, I see you have a scope, not iron sights.
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