Drop Charts from Sierra not matching up.

[CHARLIEDUECE65]

I kinda figured that would be the most accurate route. Thanks for the replies.

[bigngreen]

If you're data is tight, scope high measured with a caliper, zero dead nuts on and eviro data on you can shoot your data and run it through a program with trajectory validation. I don't know about Sierra but the G7 program in the LRH tool bar has trajectory validation, you could then take the corrected data and use it in what ever program your using then make minor adjustments if needed. You could post up your shot data and someone will run it through Exbal also and trajectory validate.

[CHARLIEDUECE65]

Well my scope height probably isn't right, I went with the default of 1.6 and obviously my muzzle velocity wasn't right. Everything else temp, barometer, and altitude were put in before I left for the range. I tried adding faster velocities but the drop corrections from 200-300 still weren't close. What are people seeing the B.C. of the new Hornady Amax coming in at. I think the Sierra data has them at .500. I shoot these in my 6 Dasher at 600 for F-Class and they shoot superb.

[CHARLIEDUECE65]

Well, I went out shooting again, adjusted the scope down to zero and back up ten clicks and shot at 300 yards again and the gun is right on. I'm wondering if maybe the 1/4 click value of this scope isn't exactly on. Could this be the problem? I've tried several other programs and they're giving me the same or close to the same adjustments as sierra.