I have a AR10 with a Nikon M308 scope. I am pondering how to sight the scope. The only range available to me at present is max 200 yards, so that's the target distance (pun intended) I'd like to get accurate at.
When looking at the ballistics chart here: http://www.gunnersden.com/index.htm.308winchester-ballistics.html
I noticed that the drop at 100 yards for all ammo was zero. At 200 yards the drop varied from 2.3" to 10". I ultimately plan to load my own ammo and this table tells me to target a light projectile with a high muzzle velocity to get a flat trajectory ( Duh!!!)
Should I zero the rifle at 100 yards and do a hold over at 200? I'd like the ability to engage targets at all distances, so I hesitate to fine tune for 200 yards, particularly since the drop numbers vary so much. I'd prefer to set the scope turrets once and leave them alone permanently, if that's feasible.
When looking at the ballistics chart here: http://www.gunnersden.com/index.htm.308winchester-ballistics.html
I noticed that the drop at 100 yards for all ammo was zero. At 200 yards the drop varied from 2.3" to 10". I ultimately plan to load my own ammo and this table tells me to target a light projectile with a high muzzle velocity to get a flat trajectory ( Duh!!!)
Should I zero the rifle at 100 yards and do a hold over at 200? I'd like the ability to engage targets at all distances, so I hesitate to fine tune for 200 yards, particularly since the drop numbers vary so much. I'd prefer to set the scope turrets once and leave them alone permanently, if that's feasible.