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Old March 11th, 2009, 13:52   #6
Phil_Black's Avatar
Join Date: May 2005
Location: Saguenay QC
If the BB's are flying as far as they always do and that the fps is the same it's a pretty good sign that ther's no compression issue.

You will notice when it will happen.

Range will be affected and velocity.

Shimming is the correct space between the gears and the shell in the gear box.
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