Originally Posted by TokyoSeven
I believe the graphite is there for some form of supposed lubrication purpose,
as I have seen graphite used to lubricate the inside of a lock, Im assuming its graphite covered BB's are supposed to somewhat lube up the inside of a barrel when firing, however with that theres also a build of of the graphite as well and once it al gunks up, thats no good.
They're for target guns that have no hopup. So yeah, the graphite lubes the barrel, and since there's no rubber there, there's nothing for the graphite to stick to and foul.
Coincidence that the big BB brand known for heavy weight graphite coated BBs (Digicon) also has a nice line of target pistols? Yeah, there is a reason there's graphite on them.