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Old 06-19-2017, 11:14 AM
  #6  
bronko22000
Boone & Crockett
 
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Join Date: Jan 2004
Location: Eastern PA
Posts: 11,905
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I like my flash hole to be .050 - .055" in diameter. I take the original (flat face with screw driver slot) and drill a shallow "V" in it with a 1/8" or 9/64" bit. Not much. Just enough to funnel the flame to the touch hole. Works better than the flat face.
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