I've built plenty of heavy barreled rifles on axis and 111 actions. Now I'm thinking of switching gears and building a light rifle with a short sporster contour barrel for stalking vs sitting in the deer stand drinking coffee. I've got several barrels to choose from and have narrowed it down to 270 or 243. I'm building on a 111 or axis receiver so length isn't an issue.

My main questions are
Has anyone ever fired a 270 or 243 out of a 16" barrel?
How much velocity will I loose.
I expect accuracy to improve with the more rigid shorter barrel and 11 deg target crown "this has happened every time I cut down a lightweight barrel".