Thread: Underwood 220 gr hardcast
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Old 11-14-2012, 18:20   #31
nickE10mm
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Quote:
Originally Posted by NoJoy View Post
Does anyone know if Underwood is using a stock barrel to achieve his chrono results? 220gr@1200fps out of a 4.6" barrel is outstanding.
My GUESS would be 800X... but possibly Longshot.
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