Point of impact and point of aim.
1I've been shooting relatively short ranges both with a pistol and a rifle. I've not really had cause to adjust much, but I do want to be able to shoot the pistol to 50 yards and my rifle a bit further. I'm curious about trajectory calculations, all that I can find on the net seem to be programs which calculate for you. But, it would be nice to have a formula or another method even a chart I could refer back to when adjusting my aim. With my rifle it would appear that she is fairly accurate at the 150m range judging from my 100 yard workout. My short distance is a bit high and at times a bit low. The low I know is a trigger slapping or jerking issue I have after I start getting tired. The high I believe is a point of aim and point of impact issue. Any reference links would be appreciated. My current calibers are 9mm Luger usually 124gr, .32ACP at 73gr and 7.62x54R at 182gr.