.460 Weatherby Magnum, the issue was more magnified in this cartridge than others due to the additional stress imposed on the bullet by the higher velocity of the cartridge as is the case with the .375 H&H Magnum cartridge firing the solids at . Using premium, stoutly constructed premium solid bullets similar to the Barnes Banded Solid, Hornady DGS, Nosler Solid, Speer African Grand Slam Solid and others have resolved this problem. Parent cartridge The large case capacity of the .460 Weatherby Magnum lends itself to various forms of conversion and experimentation. The .460 Weatherby Magnum has served as the immediate parent cartridge of several proprietary and wildcat cartridges. It is, however, also correct to list the .378 Weatherby Magnum as the parent cartridge for these cartridges as the .460 Weatherby Magnum itself was based on the .378 Weatherby Magnum case. The following are some of the better known cartridges based on the .460 Weatherby where the .460 acted as the direct parent cartridge: .460 A-Square Short The cartridge is a proprietary cartridge designed by Arthur Alphin of A-Square. This .458 caliber (11.6 mm) cartridge is based on a shortened .460 Weatherby Magnum case which can be used in a standard length action rifle. The cartridge is capable of developing when firing a bullet at . .465 H&H Magnum The cartridge was designed by Russell Wilkins and Holland & Holland and released in 2003. The cartridge is capable of firing a .46 caliber (11.7 mm) bullet at . This cartridge is designed to work at moderate pressures. .475 A&M Magnum The .475 A&M Magnum is a .47 caliber (12 mm) wildcat cartridge designed by the Atkinson & Marquart Rifle Company of Prescott AZ. It is based on the .460 Weatherby Magnum necked up to accept a diameter bullet. The .475 A&M Magnum is capable of launching a at for energy. .500 Whisper The .500 Whisper was disigned by J.D. Jones of SSK Industries. It is based on a shortened .460 Weatherby Magnum case which is then necked up to accept a VLD bullet. It is capable of firing a at . .50 Peacekeeper This cartridge is another one of J.D. Jones' designs. It is essentially a .460 Weatherby Magnum necked up to accept a , diameter VLD bullet which it is capable of firing at for energy. .500 A-Square The .500 A-Square is another proprietary cartridge designed by Arthur Alphin