I have a new Rossi M92 in 44 Mag. I'll probably be able to get a 240 grain jacketed bullet up around 1800 fps and a lead bullet up around 1300fps (just guessing, don't hold me to it.) It got me to thinking about how elevation is going to affect point of aim. I know we've talked about this before. I know a bullet fired from a treestand hits higher than one fired from the ground, and the same is true if you're shooting up hill.
This got me to thinking further. When I sight in my deer rifles on the front porch, the 100-yard target stand is well below the elevation of the house. I'm going to estimate 20 feet or more. I normally sight in my deer rifles at +2" at 100 yards, and it has served me well over the years. I never hit high or low out beyond 200 yards, which is the furthest I can shoot on the property anyway.
My question is this: how does one quantify the effect of inclination to the target ? The last time I had to do this sort of calculation, they were making me use a slide rule.
