An active hunter in Hokkaido was thrown into another world.
A bit of a maniac about the scope.
I would like to write as much as I like in my personal view on topics related to scopes that are often pointed out by readers.
I will overlap with some of the content covered in this novel, but many hunters are unaware of the scope or do not use the features that are attached at all, so I would like to explain.
● Q. Does the scope require a focus ring mechanism?
A. Simply put, it is necessary for sniper and long-range shooting competitions, not for hunting rifles, but for hunting air rifles.
The AO (adjustable objective) mechanism of the scope is a necessary function for parallax (parallax) correction of the scope rather than focus correction such as "focusing" of the camera.
Secure the gun with an off-focus rifle scope and move your peeking head up, down, left, or right.Targets across the crosshairs should also be visible moving up, down, left and right.This is the Rifle scope Parallax, which is why the scope comes off if you don't look at it in the middle of the lens.Focusing and accurately focusing at a distance prevents this shift and allows for more accurate shooting.
This parallax correction is actually why there is a focus ring in the long range sniper, large caliber scope for competition, and not just for focus.
On the other hand, hunting rifles usually do not have a focus mechanism and typically have a pan-focus of 100 yd to ∞ (a lens designed with a wide field depth that does not require focus adjustment). Since there are no civilian shooting ranges exceeding 300 m in Japan, it can be said that pan-focus is sufficient for Japanese hunters who cannot shoot beyond that distance.
Turning the lens to focus may cause poor workmanship accuracy and subtle misalignment, and many veteran hunters hate scopes with a focus mechanism.This is why the hunting scope of the Panfour Cube is simple, reliable, and lightweight, because there is no need to focus and there is only one element that makes aiming crazy.
When using a scope with a very high zoom magnification, it is normal to have a focus ring in an advanced expensive model because the optical structure does not help to narrow the focus very much.If you want to observe your prey as well as Sin, you will need it.
Conversely, this AO mechanism is mandatory for most air rifles that shoot less than or equal to 100 m. If you use a hunting rifle scope without this, you will have trouble shooting 10 m or 20 m without targeting small birds with pinbokeh.This is a purely focused and essential feature.
A large scope with a large wheel-shaped fine distance scale engraved focus ring is actually a scope for an air rifle shooting competition called a "field target" and not for a rifle.The aim is to measure the distance to a target of several dozen meters by focusing, and using this for long-range sniper rifles is a misuse.If you think about it a little bit, it can't be useful because it had a big focus ring with a distance of 15 meters or 20 meters engraved on it with a sniper rifle.That exaggerated gigantic scope is actually for air rifles.Search for videos in Field Target.You can see an air rifle competing by turning a stupid large wheeled focus ring.
Of course, in survival games and the like, the scope attached to the air soft gun is not currently aimed at more than 100 m after 1J regulation, so this type of AO that can adjust the focus is recommended.This is why Marui's genuine air soft gun scope has a focus ring, which makes sense.
However, even short scopes with a magnification of about two to four times lower for real guns don't look blurry at close range even without AO, so it might be enough for savages. If you set it to a minimum magnification of three times with a zoom scope of three to nine times, you can manipulate it to eliminate blurry at close range.
● Q. Does the scope adjustment dial adjust before firing?
A. Hunting rifles do not adjust the scope at all
Looking at the rifle scope, there is a tactical type where the adjustment dial (turret) can be turned as it is, and a hunting type where the cover is attached so that it does not turn even when touched.
In the hunting type, when zero in the shooting range is aligned, do not play with any adjustments anymore, attach the cover to the dial, read the scale engraved on the crosshairs by distance, and aim
Change the point (for example, aim a few dozen centimeters above the target).
With a cheap scope of tens of thousands of yen, after moving the dial fourteen clicks to lower the aim, the dial is again raised fourteen clicks back to reach exactly the same place before moving.Hunters hate it when they end up touching the turret badly, so nobody touches the turret while hunting.In Frederick Forsyth's novel Jackal Day, Sniper's protagonist Jackal has a scene in which he hangs adhesive on the dial after aligning the scopes to prevent it from moving anymore.Scopes that can be adjusted to tighten the lock screw to prevent it from moving anymore are also available.
In battlefield examples, the military red-field-scoped turret used in the M40A1 (Remington M700) sniper rifle used in the Vietnam War has the same cover as the hunting type, making it immobile.This is because the maximum range assumed by the sniper rifle at that time was about 600 m, and it was sufficient to change the target point by reading the scale in the scope depending on the distance.It was no different from the hunting rifle scope.
When the rifle's maximum range is greater than 1 km in modern times, it must aim 6-8 m above the target's head.This will exceed the scale in the scope and make the target appear smaller without zooming up.When this happens, you need to adjust the clicks, and you need a cool tactical scope with a big adjustment dial like a movie.
In other words, the fact that there are no civilian shooting ranges in Japan that exceed 300 meters, and Japanese hunters that cannot shoot beyond that, is that the tactical type of the dial bare can only be used to carry the treasure.It's cool.
● Q. How long does the aim travel when the scope adjustment dial is turned?
A. If you say "Sniper clicks dial before shooting," do you know how many millimeters the aim moves once it clicks?
Don't worry, this is usually on the scope turret.
1 click = 1/4 MOA (angle varies by a third and a quarter in one click)
1 click: 100yd-1/4 inch
Usually denoted by one of these
If you want to express it at an angle, it will be up, and if you want to express it at a movement amount, it will be down.In the European market, which adopts the common metric method, the above notation is used, and in the North American market, which adopts the yard pound method, there are many below.
In this case, 1 click (click) is the smallest unit of the dial scale and is a click.
MOA (Minute of Angle) is an angle of one-sixtieth of an angle.The angles are the same as the clock: degrees, minutes, seconds.
Yd is one yard and inch is one inch.
In fact, the amount of travel is the same for both the top and bottom, and both are expressed in Japanese terms.
"At 100 m, it moves 7 mm with a single click."
For rough aiming such as datsites, this click is 1/2, or 1/8 for high magnification scopes that exceed 12x.
The scope adjusts the "angle" to the fixed barrel, so the width varies depending on the distance.
At 50 mm, 3.5 mm with one click.
At 100 mm, 7 mm with one click.
At 150 mm, 10.5 mm with one click.
At 200 mm, 14 mm with one click.
21 mm with one click at 300 m
In short, the amount of movement is proportional to the shooting distance. Of course.
When actually adjusting the scope, when setting zero at 150 m at the firing range, the first three shots created a triangle of bullet marks, and the graphic center of gravity of the triangle was shifted by 4 cm below and 2 cm to the right.
Up and down (elevation) 40mm/10.5mm ³ 4 clicks in the UP direction
Left and right (windage) 20mm/10.5mm ³ 2 click in the L direction 2 click
is a modification of. If you want to save ammunition to test, let's do this calculation.
Of course, a cheap scope of about 10,000 yen won't work this way, so I have to shoot a few shots and gradually adjust it. It will move more accurately from about 20,000 yen.
● Q. What is a scale mildot for a scope?
A. When looking at the scope, there may be a scale on the crosshairs.This is usually a scale for distance measurement called a milldot.
The hunter did not turn the sighting dial and wrote that it is normal to read the scale of the scope and shift the target to shoot, but the scale is this mildot.
This scale is carved at a width that appears to be 1m 1,000 meters away.
Therefore, the scale width is 50 cm at a distance of 500 m, 30 cm at 300 m, 10 cm at 100 m, 5 cm at 50 m, 3 cm at 30 m, 1 cm at 10 m.
However, with a cheap copy scope of about 10,000 to 20,000 yen, this scale is of course only appropriately carved with cucumbers, so it is not very popular.
Once you have bought the scope, place the 30cm scale 30 meters ahead to see if it looks like a 10-scale width.If you change the magnification of the zoom, there should be a magnification that fits perfectly, and it is a good way to remember that magnification or always set it to that magnification without touching the zoom.
Normally, this mill dot is set to the exact width at the maximum magnification of the scope.
A second focal plane in which the scale width does not change even when zooming as described above, or a first focal plane in which the scale width expands and decreases accordingly, is called a "first focal plane".(Sometimes marked Focal plane: 2, Focal plane: 1)
It goes without saying that the first focal plane scope is a luxury scope of over 100,000 yen, the mill dot width is precisely adjusted, and it is reliable to use at full zoom magnification.
The total length of the crow is 50 cm, and if it appears to be 16 mils in size, the distance is 30 m. If the precharge air rifle is set to zero at 50 m, it will land about 3 cm above the center of the crosshairs, so it will aim at the scale on 1 mil.
On the battlefield, if a 170 cm tall person appeared to be at a height of 5.5 mils, a rifle with a distance of 300 meters and zero in at 200 meters would strike down about 10 cm at 300 meters, and a headshot would aim down about 1/3 mil.I don't know exactly because I've never targeted anyone before.But I think you can understand that this is much less troublesome and no need to worry about going crazy than turning the turret around.
If the impact is 1 mil offset at the 50m range, the offset is 5 cm.
Since it will be 50 mm/3.5 mm × 14 click, it can be corrected by turning it by 14 clicks.
If the impact is 1 mil offset at a 100m range, the offset is 10 cm.
It can be modified with 14 clicks as well as 100 mm/7 mm ³ 14 clicks.
The clicks on the mill and turret are angles, so you can see that the number of adjusted clicks does not change depending on the distance.The mild scope is also very useful for aiming adjustment.
● Q. Which is better for high mounting or low mounting of the scope?
A. Scope mounts have a recent demand for high mounts with heights greater than 40 mm.This is because a scope with a large diameter lens exceeding 50 mm in diameter cannot be mounted without increasing the mounting position of the lens against the barrel.Hunters who want to use cool, large-caliber lenses have to use high mounts.
However, if the mounting position is too high, the muzzle height and the scope height are too far apart this time, and the impact position will be greatly shifted when the distance changes. Especially in a birdshot air rifle with an acute diameter of about 2 to 3 cm, it will be very embarrassing to remove it at close range, which makes it difficult to use.In air-rifle bird shooting, the smaller caliber lens low mount will hit you as well as possible without having to use much of your head.Those who shoot pigeons and leopards with extermination are better off.
If possible, a low mount is preferred, but in the precharge air rifle, the rotary magazine is large and jumps onto the barrel of the gun, so you may have to use a high mount, but that won't help.The mount height of the scope can be reduced even with a one-shot pre-charge.
The high mount of the scope is intended for long-range shooting.Even if the aiming point is not moved up or down, if it is targeted in the middle regardless of distance, the range that hits the critical point is called the kill zone, but if you do ballistic calculations, it is the high mount that is wider on the long-distance side.Conversely, on low mounts, this kill zone is wide on the close side.
Whether it's an air rifle or a rifle, it's high mount for people who don't shoot close range because they have a lot of long range shooting.Low-mounting is recommended for those who may shoot at medium to short range.
● Q. Does the scope require illumination?
A. Many rifle scopes have been released that make the crosshairs of the scope visible in the dark by using LED.However, it is a reality that there is no legal scene in Japan where shooting after sunset is prohibited, and it is either possible or not.
● Q. Should the scope mounting ring be fixed with a mounting rail?
A. A special mounting ring for screwing the rifle is recommended.Hunters don't swap scopes for targets.Even if the scope is removed once, it will not hit the same place even if it is reinstalled, so it will have to be retried and adjusted.It is not necessary to assume that scopes will be replaced by night vision scopes during the day and night like military rifles, or that they will be replaced by duck sites in anticipation of indoor combat.
● Q. Is the scope diameter 30 mm or 25.4 mm (1 inch) better?
A. Either. There is virtually no difference in hunting fruit in Japan because there is no prey that cannot be caught without a 30mm diameter scope.
● Q. Is the laser site useful?
A. Not at all useful. You can't see a dot a few hundred meters away in the daytime.The bullet falls by drawing a ballistic curve, so the point of impact does not exactly match the point of the laser, and the prey hit by the laser beam runs or flies away.It is useless to think.
● Q. Is the datsite helpful?
A. The dot size is equal to twice, and the diameter of the dot is about 2 MOA.It can't be used for long-range shooting, and even a fairly bright model can't be seen at all on midday snow.
No one uses it because it won't be used in Hokkaido, but there are many hunters who say it is the easiest target for deer and boar hunting using slug bullets in the mainland, so I think we can recommend it. Everything is of the right material.
If there is any interesting chat in the future, I think I will add it.