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The scope itself - Zero. The reticle - see related links below
100 meters.
It looks like 4X larger than normal
The zero on Carlos Hathcocks rifle was 700 yards.
no scope zero scope... not fit for engineering itself
First, I would check for obvious damage to the scope and it's mount- if something is bent, it is time to replace it. Next, check that the scope is still firmly mounted, and has not jarred loose in the rings. After that, check thescrews that hold the action to the stock- be certain that they are snug, and that there is no movement of the action in the stock. Check for any dings or damage to the crown of the muzzle- a small ding there has has serious impact on accuracy. If everything is snug and undamaged, zero fire the rifle, to be sure that crosshairs in the scope have not been knocked loose. BTW, you now know why a safety harness for you, and a safety strap for your rifle are a MUST in a tree stand!
1. Using a sandbag, set up your rifle so that it doesn't move around much.2. Aim the air rifle at a target using the iron sights.3. Adjust the windage and elevation of the scope until it is pointing at the target while the iron sights are pointing at the same target.4. Try it out, see what happens. Fire three shot groups and adjust based on the center of this group.
Zero range will depend on the weapon and cartridge used..
Set up a target. Fire one shot and remain absolutely still. Have someone make scope adjustments until the cross hairs intersect the hole of your first shot. You are now zeroed
25 meters
Zero-magnification optics (meaning, they do not make the target look closer) such as the Aimpoint, EOtech, etc... are not telescopic sights. However, rifle scopes (which ARE magnified) that have "red dot" or illuminated reticles, are indeed telescopic.
Your going to need a rifle clamp or Sandbags to hold the rifle steady.With the scope mounted on the rifle ( Look up the answerto "How do you scope a rifle")Load the rifle and set up a target at the distance you intend to shoot. ei 20 yards. Use a fairly large target. I use a large cardboard box filled with paper.Using a sandbag or rifle clamp, aim the rifle at the target, clamp or sandbag the rifle as best you can and fire your first shot. (DO not move the rifle after the shot is fired. (It will jump a little) look though the scope and use the two adjusting knobs on the scope to adjust the cross-hairs to the impact point not the center of the target.Now reload the rifle again and do the same thing over again. This time aim at the target center. Sandbag and fire your second shot. Make any correction to the new impact point. The new impact point should be closer to the target center. Remember do not move the rifle after the shot, keep it steady and make the adjustments. Then you can move the rifle to reload it.It may take you 4 or 5 times to get it centered but it will happen. I always take a black marker and mark my impact point after each shot so I don't confuse it with the new impact point from the pellet.Suggestions. USE good quality pellets. Don't use lightweight pellets like the Raptors. lightweight pellets wonder off target in a slight breeze. The heaver the pellet the straighter it travels. I recommend H&N pellets or Beeman target pellets.The easy way is to go out and purchase a laser scope site. The laser fits into the barrel and projects a laser light on the target where the barrel is aimed. Then all you have to do is adjust you scope to the laser dot on the target. But that's too easy.