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Old 8th October 2013, 12:40 PM
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Brian.Samson Brian.Samson is offline
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Join Date: Jun 2009
Member of: Pontefract, Doncaster Airgun Range
Location: Doncaster
Posts: 2,318

That's an interesting read.. it'll take me a while to digest it all.. but on first reading it sounds like it supports the original theory of this thread.

Here's a quote I found interesting..
Every gun and pellet combination that I have chronographed had one thing in common. If they shot accurately, they had a high degree of pellet stability, and those that shot poorly had a very low degree of pellet stability. In some cases pellet stability was so poor, that even when chronographing them at 10 yards, velocity spread was over 100 FPS; yet muzzle velocity was quite consistent.
That quote seems to suggest that you could potentially select batches by measuring velocity as close as 10 yards..

If I get a mo, I'll see if I can get my combro and pro-chrono giving the same answers at the muzzle, then move the pro-chrono out to 10 yards to see what happens to the readings.
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