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.25 Accubond BC correct???

 
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Old 11-27-2007, 10:14 PM
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Join Date: Jun 2006
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.25 Accubond BC correct???

I was starting to shoot some longer ranges tonight with my new 257 and I either found an issue with Exbal, the BS for the Accubond or my rifle??

The rifle is shooting lights out at 100 yards. It shot this way both during break in and after.

My load is 74gr H1000, 110gr Accubond (BC .418), COL 3.248", Barrel #4 Fluted Hart 29" Including Brake. 5 shot chronograph average was 3488 FPS.

I plugged everything into Exbal, set a target at 400 yards. Exbal says to dial in 3.75 MOA. I squeeze the first round off and it is 6" high. I scratched my head, chambered another round and 6.25" high?? That is 1.5 MOA wrong.

Is it Exbal? My gun? The BC of the bullet? My Chronograph? What gives?
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Old 11-28-2007, 10:44 AM
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Disregard this, I validated everything this morning and all is good.

Not sure what I was doing wrong yesterday.
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