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Metal god · August 25, 2012, 04:42 PM

Maybe there is/was a bur in the barrel at the gas port . When the bullet passes by the gas port , the bur shaves a little off the bullet and the gasses send it down the gas tube back into the BCG .

Thats the only way I can think of little bits of the bullet getting inside the BCG

Any other ideas ?

August 25, 2012, 04:42 PM	#19
Metal god Senior Member Join Date: April 10, 2012 Location: San Diego CA Posts: 6,876	I got it ( maybe ) Maybe there is/was a bur in the barrel at the gas port . When the bullet passes by the gas port , the bur shaves a little off the bullet and the gasses send it down the gas tube back into the BCG . Thats the only way I can think of little bits of the bullet getting inside the BCG Any other ideas ? Last edited by Metal god; August 25, 2012 at 04:51 PM.