Quote:
Originally Posted by KegRiver
It sure does.
plus zero at 25 equals zero at 100 is a flawed theory.
It might work with one bullet weight in a particular cartridge and not a heavier of lighter bullet in the same cartridge or even with a different velocity with the same bullet cartridge combination.
It is only useful for rough sight in and then only if you can't hit the target at 100 yards due to scope or sight alignment being to far off.
I've been told that most modern rifles zeroed at 25 yards will be 2 inches high or more at 100 yards.
My charts don't list anything with a 25 yard zero. 50 is as low as they go. But they suggest to me that three inches high at 100 with a 25 yard zero is more likely what one would find with most modern cartridges.
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This calc is pretty decent. Pop in your BC, muzzle velocity, atmospheric conditions if you so choose and hit calculate. Sight in for zero at the Near Zero yardage. Chart tells you the rest by yardage. It's actually pretty damned accurate surprisingly.
www.shooterscalculator.com/point-blank-range.php