I've had the opportunity to review and shoot my Dan Wesson 4.5mm Steel BB Version so I kind of knew what to expect with the Airsoft version, much of the same but with perhaps a little bit less accurate further out shooting since the plastic BB's will tend to drift a bit more. I already did my pretest for the ASG Dan Wesson 6 Inch Silver CO2 Airsoft Revolver while making my Table Top Review and shot right around the 400 fps mark, but it was a colder day then, I also shot my ASG Dan Wesson Airsoft Revolver from a closer up 20 feet for the pretest and got a nice tight 1.5 inch shot group. Read full article here: https://www.replicaairguns.com/2013/6/6/asg-dan-wesson-6-inch-silver-co2-airsoft-revolver-field-test.html