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BBs falling out of GBB barrel...


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It depends also on the force of the slide return.  Even though via the BB drop test the BB is held in by the hop rubber, some GBBs and GBBRs have quite a strong slide return and knocks the BB through the hop rubber.


The solution is:

- Get rid of grease in the barrel

- Use heavier ammo

- Increase the hop, test if BBs roll out or stays, increase hop till BBs fly flat.

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