Thread: MachIV
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  #23  
Old 05-24-2019, 07:12 PM
qwk qwk is offline
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Join Date: Aug 2017
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The early Cooper Mach IV's serials start with a G. The later ones(1998+) are the VGxxx. Sometime around 2000 Cooper had those accuracy problems, along with some bad reamer(s). The neck on those was 201.5 I believe.

I have an early one circa 1994 with a 200.5 neck.
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