Time for DATA
I still need to meet one who can consistently and accurately use either a 460, 340 or 416 Weatherby
Totally agree with
@IvW except for including .340 Wby in his no-go list, but this may have been a typo and he may have meant the .378 Wby that fits right there with the .416 Wby and .460 Wby in Roy's very own DG country.
Let me explain with some data...
For reference, a 8 lb .270 Win shooting 150 gr develops
17 ft/lb of free recoil, and countless people have killed everything up to DG with it. As for 'Karamojo' Walter Dalrymple Maitland (W.D.M.) Bell's 7 1/2 lb .256 Mannlicher-Schoenauer (i.e. 6.5x54), it only developed 11 ft/lb. Lord knows how many hundreds or thousands of elephants he killed with it. Different days, different hunts, I know, but the point still remains, it killed elephants.
My .300 Wby (Winchester 70 Classic, Bell & Carlson Medalist stock, Schmidt & Bender 1.5-6x42 30 mm tube) weighs unloaded 9 lb 2 oz and develops
24 ft/lb with the light plains-game 150 gr. Nosler Partition factory load. That is already 41% more than the 17 ft/lb of the 8 lb .270 Win shooting 150 gr. (24-17/17=0.41), but most anyone can shoot 24 ft/lb of recoil without a lengthy learning curve.
That same gun (.300 Wby), develops
31 ft/lb of free recoil with the medium plains-game / universal 180 gr. Nosler Partition factory load. That is an 82% increase over the .270 Win / 150 gr. combo, and it seems that the 30 ft/lbs range is apparently where the learning curve starts steepening.
My heavy plains-game .340 Wby (Mark V Stainless, Bell & Carlson Medalist stock, Zeiss 2.5-10x48 30 mm tube) weighs unloaded 10 lb 9 oz. It develops
37 ft/lb of free recoil with the 250 gr. Nosler Partition factory load. It has more than TWICE (117%) a .270 Win / 150 gr. recoil, but it is clearly manageable
IF you know what you are doing. I do shoot ~1 MOA groups with it all day long (with a heavy shoulder pad), and I ring the steel gong with it at 400 yards with regular monotony from the sticks. Is there a learning curve to shoot accurately 37 ft/lb of recoil? Heck yes! But it can be done fairly easily with proper technique.
For comparison, my .416 Rigby (CZ 550, Bell & Carlson Medalist stock, Schmidt & Bender 1.25-4x20 30 mm tube) weighs unloaded 10 lb 10 oz and develops
56 ft/lb of free recoil with the 400 gr. Hornady DGS / DGX-B practice / brass-donor factory loads. Next level up! Clearly! Over 3 times as much as .270 Win. But still OK if you learn it, and I routinely shoot it from the bench (with a heavy shoulder pad) for loads development / optics sighting without apprehension or consequences.
To continue the comparison, my .458 Lott (Mauser 66, Docter III) weighs 8 lb 13 oz and develops
80 ft/lb of free recoil with the 500 gr. A Square Triad factory loads (I know, I date myself using these loads LOL). I do NOT shoot it from the bench, and 10 shots in a row give me a slight dizziness, while 20 rounds give me a frank head-heck. THAT GUN IS JUST TOO DANG LIGHT. PERIOD! Just getting it to 10 1/2 lb would drop the recoil to 67 ft/lb, which is, give or take, the same as an
11 lb .470 double (69 ft/lb). Pouring 2 lb of lead in the stock will do the trick but destroy the balance. There is likely a CZ 550 in .450 Rigby in my future, or - if I can scrape the money - a used .470 Heym double to replace my long gone and always lamented 450 #2. Decisions, decisions... In any case the 80 ft/lb range seems to be the threshold where even those who genuinely know how to shoot the big sticks start finding their limits. For perspective, let us keep in mind that a 12 lb .500 double "only" generates 74 ft/lb of recoil...
Now, an 11 1/4 lb Mark V in .460 Wby will doll out a clean
100 ft/lb of free recoil. And felt recoil will be even worse although harder to quantify mathematically. Not a new level; a new dimension! All I am going to say is those who shoot it
WELL are more men than I am, and ... don't forget the Excedrin ;-)
I am sure you noted that I said those who shoot it WELL. Because those who buy a canon,
relative to their shooting experience - and THAT could be a .340 if all you have shot before is a .270 - and go merely on their guided hunt with a newly bought box of ammo are in for a big surprise... Three shots into it they will be scared of their gun and not be capable a hitting a barn at 10 yards...
This is where
@Pheroze makes so much sense with the mild recoiling, slick feeding, don't-kick-you-into-next-county-but-still-get-the-job-done .400 H&H. Maybe not enough for a pro on backup duty, but perfect for a client. Replace .400 H&H with .404 or .416 Rigby in the previous sentence if so inclined (even though the higher speed of the Rigby will definitely be felt in additional recoil) .