Originally Posted by texas_yankee
Talked with a guy at KelTec this morning about the gas adjustment stuff - the RDG is different from the RFB, but mainly in the number of adjustment points - the RFBs have about 40, and the RDBs have about 20 - but, he confirmed that the process shown in the video should work for an RDB - I was curious since I didn't know how much of an indentation there needed to be in the end of the spent case.
it could be a very subtle indentation or i've gone as far as to where there's none at all. again, i prefer to get away with lower gas settings. if the gun is ejecting fine and you have little to no indentation you're good. remember if you don't have enough gas the bolt won't travel back enough to eject the spent casing.