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Old July 4th, 2009, 21:13   #2
Red Wine & Adderall
TokyoSeven's Avatar
Join Date: Oct 2005
Location: Saskatoon, SK
While I cannot offer any information in regards to BB composition, I can atleast confirm your suspicion that some lower grade BBs can damage your barrel or hopup. Due to the way some BBs are created seems or injection molding marks can be left on the surface of the BB. These seems can scratch up the inside of your inner barrel overtime, and in some cases even get stuck in your barrel.

"Its only a little bit on fire"
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