Ah yes, to echo Skaffen, CO2 is not recommended for snow days, or, obviously, any kind of freezing day. And most especially on a 'Mag, I can attest to that! One day at a team practice about eight years ago I tried running remote, THROUGH an expansion chamber, and it still wouldn't shoot. Yeah, I was full-time ref that day. You know, I think that was the day that caused me to finally go compressed air.