Traditionally, a bore laser...
|August 12 2017, 11:16 PM |
...is used to zero a scope out to 20 yards or so. It is used as a baseline for left-right and up-down. By no means used as a definitive zero. Puts the rounds within the crosshairs. From there, the shooter needs to do their part with sighting in.
With that, bore lasers, like all lasers, project a flat trajectory compared to any launched projectile. Powder burners shoot a far superior flattened trajectory than that of an and air gun. Even so, not flat enough to rely on a bore laser for zero out great distances; parabolic travel of the rounds.