Many factors are involved in the shot with a rifle. One factor that is not well understood by many shooters, and receives too little attention by most of us, it l’adattamento of the gun to the shooter.
Since we generally do not have the possibility to choose between different configurations calciature, but we have to accept the gun as it was built, we tend not to pay much attention to what is involved in adapting the weapon, we are content to shoot with what we have. The various factors in the game are easy to understand, and each shooter of long guns should have confidence.
Some definitions are needed for the discussion.
In the drawing, the dashed line that extends from the tip of the barrel “C” is the line of sight. The heel and toe -hell- -toe- football are indicated, such as calcium -butt-, with the butt plate. Let us now consider the measurements shown, and we give them a meaning.
If we draw a perpendicular from the line of sight down to the crest of football, as indicated in “BB”, this distance is called the “distance hake” (drop at comb). This is probably the most critical of all the factors that affect the fit. E ‘to the point of hake that our cheek pose while aiming. If this distance is right, when you “weld” our cheek on it, our eyes naturally falls in line with the aims.
We are able to take up the gun to our shoulder with a quick shot, and we should not change the position before firing. Became obvious that this measure is extremely important for a shotgun, or for any long gun with no rear sight. The distance of the hake is the rear sight.
If the nose is too high, even the eye is forced upwards, and we tend to shoot up. To counter this trend, we push our cheek too strong against the football, trying to lower his eyes. This is not a comfortable and natural way to target, and also lead to a strong blow to the cheek due to the recoil of the rifle.
If the nose is too low, the eye is too low, and we tend to shoot low. To avoid this, we are to support our very lightly on the cheek, nose, or even take lightly our cheek from football. It is certainly not good for accuracy. The average distance to the nose of the American rifles in recent years is in the range of 1.5 to 1.75 inches, equal to 38 ÷ 45mm.
Pulling a perpendicular from the line of sight to the heel, “CC”, the measure is called the “distance to the heel” (drop at hell). This is much less important for adaptation of the weapon of the distance to the nose.
Considering that a small change in the distance to the nose can make a big difference, a fairly wide range of distance measurements to the heel can be conveniently used according to the average shooter.
One thing that does not change with this measure is the perceived recoil. A rifle with a small distance to the heel is said to have a kick “straight.”
The recoil is more in line with football, more directly on the shoulder with a kick straight and more comfortable for most shooters. Kicks with a large distance to the heel can provide a lot of pain to shoot, because hake recoils against her cheek. The Americans are a comfortable distance to the heel in a field that ranges from 2.25 to 3.0 inches, equal to 57 ÷ 76 mm.
The distance “DD” in the drawing is called “distance from the trigger” (trigger pull). It is a very important measure when considering the suitable adaptation of a football. It is defined as the distance from the center of the butt (butt) in the center of the trigger. Became also understandable that it is also a direct measure of the length of the stock of a rifle any.
Too great a distance away from the shooter holds the rifle, it tends to move the cheek forward and brings the football back in an attempt to compensate. Calcium also tend to get tangled in the clothes quickly when it wields the rifle.
A distance is too short inconvenient for alignment, forcing the shooter to keep his face back, away from the breech, to maintain correct alignment. A distance too short will also result to send the thumb of the shooter to hit him on the nose under the effect of recoil.
An average shooter can be considered a remote trigger from 13 to 14 inches, approximately 33 to 35.5 cm. This really depends on how high the shooter, and how long are his arms. Many rifles ancients had a short distance, about 12 inches, but most modern shooters is a comfortable distance of 13:25 ÷ 13.5 inches (33.5 ÷ 34.2 cm).
Bob Spencer & Claudio Leonetti