Quote:
Originally Posted by Rocky Raab
If you sight-in about 2.5 inches high at 100 yards with ALL your deer rifles, here's what you'll get:
Brush cartridges will be "on" again at about 160 yards and 2.5" low at 200.
Standard cartridges will be "on" again at about 225 and 2.5" low at 260.
Magnum cartridges will be "on" again at about 250 and 2.5" low at 280.
You can run those profiles, with the appropriate velocities and BC numbers, with almost ANY popular cartridge, and not be more than a few yards off. Really. I used speeds of 2200, 2800 and 3000 fps, with BC of .250 and .350.
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Sage, Rocky...I like the way you think. We really do make things too complicated, sometimes, but you just dumbed it down perfectly! You could set up three or four baskets and sort the brass for virtually every cartridge chambered in a shoulder-mounted rifle, into the categories you listed above. Only difference would be bullet weight.
As Mike already pointed out, if you've got a high scope mount, like one of those shoot-through models with very high rings, your bullet has climbed more to get to line of sight at 100 yards, so it won't drop off as much as the tables suggested they will. Those are just for reference anyway. You can handload, chronograph, calculate your own BC, etc...until you actually SHOOT at longer ranges, you won't know what your gun/load does.