The barrel is 3.5"
With these sights, I'm able to put all ten in to a 5 inch circle at 25 yards freehand.
I think the gun will shoot much better than that, but that round bead for a front sight takes a lot of studying, especially as the sunlight changes.
I have no idea how it chronos, but I do know it's a loud little bugger, so I'm sure there's some loss of efficiency.
Still love it, and yes, it is a secondary defense gun. I'm a thousand times more proficient with a 22 auto than any combat pistol I've got, and I'm way more comfortable with what I know best, even if it is "just a 22"