Took the FNX 45 to the range today, wanted to try out my new DPM recoil system, also some underwood+p 230 grain ammo, also had a box of Doubletap 450 SMC 255 grain hardcast lead +p+. Shooting all this ammo with he DPM system the pistol felt like a "big ole puppy dog", very little, if anymore, recoil than standard loaded ammo. I was amazed how easy the big pistol shot. Took everything part cleaned it, inspected under bright light . No damage, did not expect any, looked good. This was some hot ammo, this pistol eats it like candy. Look out hogs!