Anyone going up to the deerstalkers range in the next few weeks with a chronograph? Just wanting to send a few rounds down range to check speeds. Have chronographed the load with a mates one but when shooting out at long range to validate the load something's not adding up. Either the BCs on the projectiles are wrong or the load is faster than the chronograph is saying by about 180 fps.
Can't figure it out so want to confirm speed against another chrony.
Cheers
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