These are really best gleaned from experience, and there really is no substitute for remaining within your maximum point blank range
if at all possible.
When using the maximum point blank range
method of zeroing (six-inch kill zone), the muzzleloader has an MPBR of 200.
3)10 mph target First LOS crossing, 25 yards; high point of trajectory, 120 yards; maximum point blank range
(six-inch lethal zone), 255 yards
First line-of-sight crossing, 25 yards; high point of trajectory, 130 yards; Maximum Point Blank Range
(six-inch lethal zone), 270 yards
When the 7x57 is used for deer hunting (assuming a six-inch lethal zone) with a typical 140-grain bullet you can zero at 225 yards, yielding a maximum point blank range of 260 yards.
70 First line-of-sight crossing: 24 yards High Point of trajectory: 3 inches at 130 yards Zero Range (second line-of-sight crossing): 224 yards Maximum Point Blank Range (for six-inch lethal zone): 262 yards SIGHT-IN DATA Using Federal 140-grain ammunition Vital Zone Bullet Max.
The maximum point blank range (one inch low) will be at 215 yards.
65 First LOS crossing): 46 yards High point of trajectory: one inch at 120 yards Zero Range (second LOS crossing): 188 yards Maximum Point Blank Range (two-inch lethal zone): 215 yards
There's a concept called Maximum Effective Range (MER) with Maximum Point Blank Range
(MPBR); they are two very different concepts.
44 Remington Magnum is used in a deer hunting application (six-inch lethal zone) with a typical 240-grain bullet you can set up for a zero range of 125 yards which will yield a maximum point blank range
of 145 yards.