Glock 23 with a Storm Lake 357Sig conversion barrel in it. Had two boxes of Buffalo Bore 125gr Gold Dots. Fired a total of 25 rounds through the chrono, about 8 of which were Cor Bon 125gr JHP's. The BB loads were clocking around 1500fps!!! Lowest was like 1485fps and highest was 1530'ish, most coming in at just about 1500fps. Thinking the chrono might be askew I checked the Cor Bon and they were just over 1400fps average (low of like 1380 and high of 1425 or so). I was so shocked that I didn't write all the velocities down but these are all in the ballpark of what I saw. I knew BB loads were hot but 1500fps? Yeah baby! Gonna need it 'cause these are the 6 petal "over-penetrators" (from another thread).