I had a 24F in .223/12 gauge.
I sold it.
It was too heavy as a decent field gun, even with the synthetic stock. And I thought it had a terrible stock design for a shotgun. If I put a scope on it nice enough to take advantage of the .223's range, it made an awkward shotgun. And I never liked how it shot as a 12 gauge shotgun. It just beat the hell out of me. I've got a single shot turkey gun that weighs less than 6 pounds, and it wasn't as bad on me as the Savage was.
I've got an earlier model 24, a .22 rimfire/.410, and I just love it.
But while the 24F .223/12 gauge is a nice idea, it seemed to fail in execution.