The absolute best, hands down winner, top of the high heap of gas operated semi auto shotguns was the Winchester Super X Model One. They cost from $300 to $450 thirty years ago, and were worth every penny.
The 1400 series is older than the Super X. The Super X was based, loosely, on the same general shape as the 1400, which was loosely based on the Winchester Model 50. The 1400's have a lot of that same feel, handling, and pointing ability that made the Super X a legend. At half the money, or less.
The 140's are just cheaper versions of the 1400. Yours would have Winchokes, which is a very good thing.
I've owned a few 1400's. They also do an excellent job of damping recoil. I remember one I owned with a hard plastic butt plate that was truly a "kickless wonder".
Winchester shotguns are, or at least were, famous for their shooting abilities. Count on your 140 to shoot great patterns.
The only bad side, is that all of the 1400 series, from the lowest 140 to the highest grade Model 1500 XTR, were an corporate exercise in how cheap a semi auto shotgun could possibly be made and still shoot. Everything, everwhere, inside them is made of flimsy pot metal, stampings, and cheap springs. Contrast this to the Super X Model One, where just about everything, everywhere on the gun is made from the finest Winchester Proof Steel
I would imagine that a fairly active target shot would wear one completely out in a year.
However, mine never gave me any trouble. I also didn't try shooting them ten thousand times a year.
I almost bought a near perfect Model 1400 12 gauge with vent rib and Winchokes for $250 a couple of months ago, but I passed. $250 buys half or more of a Super X Model One. :wink: