mzdadoc wrote:After achieving your zero at either 100 or 200 yards you can then adjust to compensate for windage and bullet drop to greater distances of lets say 600 + yards. The shooter in the video Ryan Cleckner with the National Sports Shooting Foundation (NSSF) then shot at a target and hit center mass perfectly. The part I don't understand is his crosshairs were over and up totally off the target in essence compensating for windage and drop. Why? What the purpose of making adjustments to your scope at those distances then? My uninformed logic tells me I should have my cross hairs right where I want the bullet to go since that's where I adjusted it too already. What am I missing?
He wasn't aiming high and right. That was video through a different scope view. Notice how the reticle didn't move at all from any recoil? It was there because the camera likely didn't have enough magnification to show the target that far out. You can also follow the vapor trail of the bullet from low right to high left, which indicates that the scope view is offset above and the left of the shooter.
FWIW, stick to 100yds zero. It's the least confusing and the most efficient. There are two instances where zeroing at longer ranges would be appropriate. The first is for ELR (extreme long range) where you need a longer zero to achieve longer impacts. The second is for single-purpose hunting where you knew that your shots would likely be at 200yds or 300yds because that's where the game trail is from your stand or blind, etc. In this second hunting type aspect, we're talking about a scope that likely does not have externally adjustable turrets.
If the rifle is for hunting, that's one matter. If the rifle is for target/precision tactical long range, I would highly recommend that you look at mils as opposed to MOA. Having an index matched system with a MOA turret and MOA reticle (MOA/MOA) or milrad turret with milrad reticle (mil/mil) is ideal because it makes corrections easier and more intuitive. The traditional method of MOA turret/mil reticle is useable, but it's antiquated and is being phased out. The USMC has completely phased out the MOA/MIL for a MIL/MIL setup, and the US Army is about 60-75% converted to MIL/MIL. In tactical precision long range competition, everyone is running matched index MIL/MIL or MOA/MOA. Mils are easier to work with due to greater availability of turrets and accessory options like spotting scopes with matching reticle subtensions. MOA is growing in availability though. At this point, there are plenty of quality scopes on the market that offer mil/mil capability in all price ranges.