Quoted:
How much does the M855 drop out of a 14.5" bbl in 25m?
backbencher
The M855 drop is ~0.3".
Quoted:
Well, I'm hoping to draw a pistol as well, for these last few months, just in case. But back to the original question - on a laser range of 25m or shorter, what should the relationship be between the laser dot, the BUIS, & the Aimpoint dot to produce, as closely as possible, a 25/300m zero, given an M4 w/ 14.5" bbl, & M855 ammo?
You have used the term Laserlyte more than once. Can I take this to mean that you are not using the Insight LBS, but you are using the Laserlyte brand boresight device?
If this is the case, I would go back to what I said earlier, set the BUIS to '2' and adjust the laser's POI to be 1" below your POA, @ 25M. Once this is done, you can use the lever to adjust your range from 200M through 600M.
With the Aimpoint, to quickest way is to use an absolute
co-witness and adjust the dot until it is on the tip of the front sight.
Still not comfortable with a SM using a carbine w/o a confirmed zero, but then I'm a curmudgeon.