CO2 vs cardboard 20 meters away

[phenol]

60W (22mA) tube powered at 15mA. the burn mark 20m away from it is 25-30mm or so, but it could be smaller, it's kind of hard to tell with paper targets. I didn't have time for wood, maybe the next time

 

[kilter]

wow. that is one :lasergun: laser! +1 for you