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Polish it!

Wrap a cleaning patch around a chamber brush and put some Flitz or other such polishing compound on the patch. Then "Turn, Turn, Turn!" Polish the wee out of the chamber and see if it will improve the performance of the VQ barrel. Polish the entire chamber evenly so you don't distort the shape of it.

ALL .17HMR semi-autos need to have the chamber cleaned every 50 rounds or so. Letting the chamber get dirty can cause incomplete chambering if the fresh cartridge and result in out-of-battery ignition! Bad JuJu! :bthumb:
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