IMO I would have to see the Stryker shoot that fast. It has a 17" power stroke and the Excal Exomax has a 16.5" power stroke, but the Excal has it in poundage by 50# ( 175# vs 225# ) !! The Ecal is rated at 350FPS. I don't know howit couldshoot 55 FPS faster, unless it has some type of radical cam design or something.I guess it could be possible, butI would have to see to believe. I personally wouldn't sink that kind of money into someone's first attempt at Xbow manufacturing.