| In the early 1990s, sight glasses were not very popular in the civil market. Having an optical lens is like having a PCP or baldness now, but the division of sight was very simple at that time.
However, many times due to the parabolic effect of the projectile. When I calibrated the crosspoint of the dividing line, I found that this crosspoint can only aim at one aiming point, and we can't guarantee that we can hit the target 100% at different distances. After a long time of use, I have a full understanding of the division of my sight and the exterior trajectory of the projectile, so I remember every useful node on the line of sight and the corresponding trajectory in the school gun. In this way, we can achieve 100% success in hunting.
At that time, I used gun to return to zero at 22.5m. At this time, the cross point on the scoreboard was just the drop point of the bullet.
Then, I use the crosshairs to try out different distances. And draw the falling point on the paper and record the falling point. When recording the impact point, one element is to record the relative position of the ballistic impact point and the crosshair. In this way, I slowly drew a picture.
In this picture, I take the intersection point of thin line and thick line as the aiming point of reference. It also uses half of the thin line as a virtual aiming point. Even the thick line below and thin line at the same time as the virtual aiming point. As shown in the figure below, when hunting frequently, the impact point of these bullets is already well known. When firing again, only the distance is accurate. Such a division also becomes: there is no division in the mirror, but there is division in the heart. |
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