Definitely a good caliber! Recoil is not much more than a 45 ACP. This pistol is pretty heavy, so it is very controllable. The machine work is flawless. Very tight slide to frame fit. Makes me want to keep it! Lol!It's a beauty. I don't have the license for a pistol. But, I am genuinely intrigued by the 10mm. Can you describe what she handles like?