nearsightedgunner

If you bench rest your firearm at the same height as the 1st target at 25 yds and place a second target behind it of the same height at 50-65 yds you will see the drop that I mentioned before. The drop starts at 25 yds since its my established POI. It could travel farther hitting the same POI but my concern is the 25 yd line before the bullet starts its sloping journey, downward that is. Since its a paper target, I do not believe deflection is an issue here specially when the bullet choice is truncated cone 124 gr at 1200 fps. In like manner, metallic silhouette shooters dial in their rear sight for 100 yd POI, mark their rear sight for 200 yd POI dial and so on. The farther the distance the higher the elevation becomes and the slope the bullet has to travel on it downward travel. All I’m saying is bullets travel flat coming out of the muzzle up to a certain point till gravity starts doing its job.

I tend to disagree that the bullet will rise past 25 yds. When I sight in my pistol I make sure the height of my muzzle on the bench is the same height of the X on the BC27 target at 25 yds. Basically it is flat or shall we call it 0 MOA. When I shoot PPC at distances of 10, 15, 25 and 50 yds I aim below the letter X at 10 yds as you mentioned to compensate for the height of the front sight and at 50 yds I aim at the chest below the shoulder. Most of my competitors have established the same method in relation to the bullet drop or what is known as the rainbow effect. Its the same effect for rifles. As a retired engineer, I’ve seen my share of surveying results and datas pertaining to earth curvature, ballistic researches on rifling twist, projectile ogive profiles, etc. But one basic rule I find most important, the trigger pull. in falling plates event with the diameter of 8 inches at distances of 10,15, 20 and 25 yds. my hold is basically the same all through out. As a 73 yr old and long in the tooth shooter I have resorted to arm length prescription on my right dominant eye and distance on my left eye when I shoot iron sights. Obviously the right to see my front sight and the left for the target. For IPSC I use my progressive lens. I developed my two eyes open shooting style when I was 27 and when I shoot at farther distances I squint to narrow my iris the same way camera lenses do at f32. i gave up bullseye shooting a long time ago when I caught myself dozing off at times.

I am a no 3 guy. All my front fiber optic sights are almost at the top edge of the blade. I also favor a narrow blade. That way when I switch to my open gun my hold is just as natural as with my limited gun. I sight in all my guns at 25 yds. Anything farther I compensate by simply raising my hold by a hair. I find it very important to stick to one particular load to be able to predict your bullet drop. So far it works for me.

Try to switch to plated bullets. The cost maybe a little higher but I don’t believe it will be much. Are you sure its the blue polymer coating you are seeing around your crown or are they carbon deposits? Either way you need a little elbow grease. Try Scottsbrite pad and a good brand barrel cleaner solvent. Patiently rub the deposit with it.