So your " complaint" is not the rounds made 50 to 60 years ago but the bullets used could not take the speed of the 460.
Hummmmm~ so in other words......you are posting a complaint that died long before many members here were born.
As far as bullets bending many years ago..... the same bullets loaded into the 458 wm would bend as well, though people claimed that it moved too slow.
1stly , let's get something very clear . If I have a " complaint " with the bullets , then I will say so myself. I do not like the .460 Weatherby magnum calibre ( in it's factory loaded form ) for various reasons , as listed below :
> The recoil is ungodly . In my 10 year career as a professional hunter , I do not recall having even 1 client who could shoot accurately / handle the recoil of a .460 Weatherby magnum calibre rifle with factory loaded ammunition. I have fired a .460 Weatherby magnum calibre rifle 7 times in my life and I struggled with it as well. Perhaps , I am physically weak , but I weigh 186 pounds and have a height of 6 feet 2 inches . I have also served in the military and seen combat .
> The only way the average man can take the recoil of a .460 Weatherby magnum calibre rifle is by using a muzzle brake . God help your ears and the ears of your professional hunter if you happen to be firing 1 with him near you ( which invariably happens a great deal , especially in dangerous game hunts . )
> At normal ranges where dangerous game is shot ... the .460 Weatherby magnum in it's factory loaded format delivers excessively high velocities which is counter productive . Unless you plan to shoot an elephant or gaur bison or cape buffalo at distances exceeding 200 yards , you do not want such a high velocity .
A lowered velocity produces less erratic results on bullet integrity .
If you lower the powder charge of the .460 Weatherby magnum and bring the velocity down to 2350 feet per second or thereabouts , then you have good performance.
If high velocity is your fancy , then you use a monolithic solid bullet of 500 grain weight, with a flat point ( as opposed to a round point ) . That will not deform .
The South African company , Rhino will turn out such bullets for the .460 Weatherby magnum calibre . Barnes used to do it as well , but ceased manufacturing them after BATF ( Bureau of Alcohol , Tobacco , Fire Arms & Explosives ) declared them to be armour piercing .
Issues that occurred 50-60 years ... Hmnnn , let's see. So , in 1990 a professional South African elephant culler by the name of Mike LaGrange published a book named " Ballistics ln Perspective " ( a book which I highly recommend to anyone who plans to hunt dangerous game someday ) . This gentleman shot more that 6000 African elephants between 1980 and 1990 , when he was in charge of the culling team at Nyamanetchi . In his book , he documents the dismal failures of factory loaded .460 Weatherby magnum ammunition when used on big bull elephants for brain brain shots , or cape buffalo with frontal heart shots and shoulder shots .
In 2011 , a professional hunter named Pierre Van Der Walt wrote a book called " African Dangerous Game Cartridges " where where he speaks of the dismal failures of .460 Weatherby magnum calibre factory loaded ammunition on African elephants and hippopotamuses .
Sure .. I am no spring chicken ( I turn 80 this year ) , but 2011 seems fairly recent to me .
Regarding the .458 Winchester magnum ... It is not a cartridge which I have much love for , either . A .375 Holland & Holland magnum cartridge case is 3 inches long and propels a 300 grain bullet with marvellous results . By contrast , a .458 Winchester magnum cartridge case is 2.5 inches long ( 0.5 inches shorter ) and yet it employs a 500 grain bullet ( which weighs 200 grains more than the aforementioned .375 Holland & Holland magnum ) . In my eyes , this is conceptually wrong .
When Winchester launched the .458 Winchester magnum calibre in 1956 , their factory manufactured ammunition was loaded to achieve a velocity of 2150 feet per second. Unfortunately , they realized that shelf life with such a powder charge was very definite . Ammunition stored for a few years tended to develop erratic velocities , often delivering velocities at least 100 feet per second less than what was advertised . In 1960 , Winchester began to manufacture their factory loaded ammunition to achieve a slightly lower velocity of 2130 feet per second . Unfortunately , shelf life was still a problem ( especially compared to other calibres ) . In 1973 , Winchester began to load their factory manufactured ammunition to achieve a slightly lowered velocity of 2120 feet per second , in yet another attempt to improve shelf life . Unfortunately , the desired result ( a longer shelf life for .458 Winchester magnum calibre ammunition ) was still not achieved . In 1978 , Winchester finally decided to do something drastic . They lowered the powder charge of the .458 Winchester magnum calibre factory loaded ammunition to achieve a velocity of 2040 feet per second. This move DID improve the shelf life considerably . Unfortunately , it also made the .458 Winchester magnum calibre an unreliable performer for frontal brain shots on big bull elephants , and this phenomenon was recorded widely by the Zimbabwe Department of National Parks and Wild Life Management, whose culling teams experienced numerous penetration problems on big bull elephants , using the factory loaded ammunition produced by Winchester and Remington for the .458 Winchester magnum at that time ( 1980 to 1984 )
Remington also followed the same route as Winchester . When Remington 1st began to manufacture .458 Winchester magnum calibre factory loaded ammunition in 1961 , the advertised velocity was already 2130 feet per second ( because they had already learnt from Winchester that a velocity of 2150 feet per second was causing problems with shelf life ) . They experienced shelf life problems and thus , by 1973 the powder charge was lowered to achieve a velocity of 2120 feet per second. They still experienced shelf life problems , and thus in 1978 they ( like Winchester ) also lowered their powder charge to achieve a velocity of 2040 feet per second . The effect ( or lack thereof ) that this lowered velocity had on thick skinned dangerous game ( especially frontal brain shots on big bull elephants or frontal heart shots or shoulder shots on cape buffaloes ) was widely recommended by the African game departments of the 1980s ( as I have elaborated on , in the above paragraph ).
If you wished to get desirable results on thick skinned dangerous game , with the .458 Winchester magnum , then the trick was to do 2 things :
> use ammunition loaded to the original advertised 2130 to 2150 feet per second.
> Use VERY FRESH ammunition , taking the short shelf life in to the equation .
The early patterns of Winchester and Remington factory loaded ammunition ( which was loaded to accomplish a velocity of 2150 feet per second and 2130 feet per second , respectively ) were marvellous performers if the operator was using freshly loaded / factory ammunition . I have personally seen what freshly loaded .458 Winchester magnum ammunition ( loaded to velocities of 2130 to 2150 feet per second ) can accomplish . They are good performers.
Today , most modern hunters who use achieve good results with the .458 Winchester magnum AND get a good shelf life , use bullets weighing no more than 480 grains . This increases powder space and shelf life. Those who use monolithic bullets typically use 450 to 465 grain bullets . Of course , sectional density is compromised . However , they do the work properly.
Your statement that bullets were also bending in the .458 Winchester magnum calibre is also too generalized . There were , indeed a few batches of Winchester " Full Metal Jacket " factory loaded ammunition produced in the late 1960s ( I 1st became aware of the issue in 1967 ) , where the " jackets " of the " full metal jacket " 500 grain bullets were poorly constructed and upon being fired at thick skinned dangerous game , these bullets often had a tendency to have their " jackets" rupture .
However , Hornady 500 grain " full metal jacket" bullets were also available during our time , as a hand loading component . These bullets had extremely thick and sturdily constructed " jackets " . When used in the .458 Winchester magnum , I had never seen a Hornady 500 grain " full metal jacket " bullet distort ( even if the ammunition was loaded to a velocity of 2150 feet per second ) .
The same Hornady 500 grain " full metal jacket " .458 calibre bullets , when used in the .460 Weatherby magnum ( loaded to factory velocities of 2600 feet per second ) were prone to distorting . If you lowered the velocity of the .460 Weatherby magnum calibre ammunition to achieve 2350 feet per second ( which is ample for anything which walks God's Green Earth ) , then these Hornady 500 grain " full metal jacket " bullets were sweet performers .
At the end of the day , however... If I was guiding clients again and a gentleman showed up at my outfitters with a .460 Weatherby magnum calibre rifle or a .458 Winchester magnum calibre rifle , then I would still be more than happy to guide them ( provided that they can shoot straight with them , of course ) .