As promised I did a redo of my Original Chronograph Test for my Pedersoli Derringer Guardian #11 4.5mm .177 Pellet Pistol. The first time around I just could not get my Chronograph to read in the poor lighting I had going on that day. I spent a fair bit of time doing some testing with my Chronograph since it is that time of year when the lighting is poor and determined that I need to use the white defusing panels as it seems that my roofline and the low light are playing havoc with the Chronograph readings. Read full article here: https://www.replicaairguns.com/2013/12/20/pedersoli-derringer-guardian-11-45mm-177-pellet-pistol-chron.html