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Posted: 4/30/2011 6:38:28 AM EDT
I have a project 300 wisper gun with a 10.5 barrel and an adjustable gas block.

what is the best way to get the adjusting screw to stay put yet still be able to adjust later if necessary?

it functions well as set up with 125 grain bullets, but I want the option to use 220gr bullets subsonic and to also use my suppressor. that's why I have the adjustable block.

so what tips are there to keep the adjusting screw to stay.?

as it sits now it is backed out about 1/4 inch of visible threads.
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