Scope Level (SLS) is a common term used for aiming in various hunting situations. It is the distance between the center of the scope and the line from the eye-line to the scope tube's rear. The closer the scope line is to the ground, the lower the SLS. This can be important in hunting situations because the closer it is, the less likely you will be hit with a stray bullet or high wind. SLS can make long shots more precise by aiming at long ranges, where reticles are at or below the eye-line.
Scopes have characteristics that give them their unique features, and each one has its specific use in hunting. For example, there is a reticle type called bullseye, and there is also a step-by-step process in teaching young hunters how to use it properly. Bullseye scopes usually have crosshairs along the top and bottom of the scope. The crosshairs show you where to hold the scope while holding the rifle; the step-by-step process teaches the hunter how to maintain the gun properly, so the crosshairs are visible and easy to see.
In addition to having the right steps in teaching the proper handling and aiming of the scope, you will need to adjust the height of the mounted scope before you shoot. This can be done with the use of an anti-cant device. An anti-cant device is a device that is designed to reduce recoil when a shooter fires a shot and the object they are aiming at moves. They usually use rubber caps to accomplish this.
There is an easy way to check to ensure you are using the proper scope for your firearm. It is called scope leveling. Scope leveling allows the user to line up the target on the sight so that the crosshairs line up with the grid lines on the sight. The gridlines on sight will guide the operator to the precise point of impact needed to hit the target.
The first thing to do is hold the rifle like you have a gun with an open barrel. Using a sling mount can make the entire operation much more accessible. The distance the crosshairs make from the center of the sight to the scope's tip will determine the length of the target. If the sight isn't level, then the distance will be off, which will cause the target to be hit off point.
After you have aligned the scope to your desired level, you will want to purchase a few anti-cant devices. There are two basic types: one that holds the scope in place and one that aids in leveling the scope. For rifles that do not come equipped with anti-cant devices, you will have to install them separately. Some scopes come with the established anti-cant bubble level, but other models will need to be installed with additional devices.
Once you have the anti-cant bubble level and calibrated your rifle scope, you can put it back in its holster or case. You should now be able to look through the reticule and see precisely where the target is. If the target moves, the device will catch and make the crosshairs line up with the grid on sight. If nothing is moving, then the reticule will stay set at zero. This is the ultimate inaccuracy.
The final step in this process is to line up the reticule on sight to the target's rear and aim the crosshairs to the front. If you haven't done it correctly, the shot will land on the wrong side of the target, and the whole target will be in perfect condition. Remember, good shooting begins with the proper alignment of the scope and the mounting surface. Setting up your scope properly will ensure that you are shooting consistently every time.