I have the 4K 3-14 on my .25 Gauntlet. I zero at 20 yards. In my profiles, I only need to adjust the Muzzle Velocity 30 to 40 fps to be dead on at 50 to 90 yards. I'm shooting the AA 26 gr at 860 fps. I ended up having to change the Muzzle Velocity to 890 fps. I use the G1 profile.