I have 2 6"ers: an octagon barrel PG with iron sights, and a FG wearing a 2X Leupold, both with the laminated hardwood grips. The scoped gun was originally a .50AE, and was retro fitted at the factory with a WE cylinder. One of the first 2 WE's to leave the factory, along with John Taffin's, it was used to take the first head of game with the new caliber, a N.C. wild boar, just as the caliber was being introduced.
You mention 4". The standard Mdl. 83 lengths are 4 3/4", 6", 7 1/2" and 10". You could get a 4" version as a custom modification with an up-charge cost of about $78.00, the last time I looked. Personally, I would have zero interest in one with less than a 4 3/4" barrel, and prefer the 6", but that's a personal thing.
I like the WE. I've used mine on hogs and bison, (well, OK...on rockchucks, too) to my complete satisfaction.
My usual loads are a Hornady 350 Magnum XTP driven by 32 gr. of H-110 for 1350 fps from my guns, and a 370 gr. CPBC WFNGC bullet driven by 33 gr. of H-110 for 1370 fps from my guns. Bison have been taken using both loads. I use Fed. 210 primers which provided better consistency than CCI Mag pistol primers. FA had the same results. My load data is within their load data range.
For truly big, difficult game, like bull elk, large bears, water buffalo, etc., I usually prefer a .475 Linebaugh, which I load heavier and with 400-420 gr. bullets, but both guns can be loaded to equivalent performance if the owner wishes. The WE weighs a little tad less.
I've seen a very few Internet Warriors who don't know what they're talking about, grumble about the WE being a belted, not a rimmed, case. I won't go into the reasons for the belt here, but forget about it. It's no problem and works quite well.
