I've been pretty happy with my "field grade" guns on the target fields. I shoot both skeet and sporting clays regularly, trap occasionally. The internals of a field grade Citori are the same as a target grade gun, it'll hold up just as well. Beretta is the same. Some field guns do have auto safeties, which are a pia. I don't think any Browning guns do, some Beretta guns have them.
28" barrels seem to work best for me, as does a gun weight between 7.5 and 8 pounds. Factory loads aren't bad for recoil at that weight, and light reloads are a pussy cat to shoot.
The latest trend is to 30, 32, and even 34 inch barrels. 26" skeet guns used to be the norm.
Don't overlook a decent field gun unless you want a gun specifically made for target shooting. Often the price is considerably lower, and to my eye the field guns often have.more classic looks. I sold a 725 Sporting last year, I decided I didn't really want ported barrels and extended choke tubes after all.