Magnum Mauser actions but these were found wanting due to the higher pressures generated by Weatherby cartridges. The Mark V action is able to contain pressure. A-Square currently offers rifles chambered .460 Weatherby Magnum in the Hannibal (right handed) and Caesar (left handed) lines. The rifles are based on the Enfield P14 design and like the Weatherby's are designed to minimize felt recoil. The rifles are ruggedly build to perform well with hard recoiling cartridges such as the .460 Weatherby Magnum, .500 A-Square, .577 Tyrannosaur. Dumoulin Herstal of Belgium manufactures rifles for the cartridge in their proprietary A2000/LM Long Magnum Mauser action White Hunter rifle line. The Dumoulin White Hunter is also available in .416 Rigby, .500 Jeffery and 505 Gibbs. Apart from these companies, several custom rifle maker such as Ballard Arms and Empire Rifles provide custom rifles in this chambering. Weatherby ammunition is billed as Ultra Velocity Ammunition by Weatherby. Typically, Weatherby cartridges exhibit velocities greater than over the more popular similar caliber cartridges. Early Weatherby ammunition was loaded to near maximum pressures. Since then, however, Weatherby has backed off from these pressures. The resulting factory ammunition is about slower than early Weatherby Ammunition. {| class="wikitable" border="1" |+ .460 Weatherby Magnum Ammunition |- | style="background: #eeeeee" width="180pt" | Ammunition | style="background: #eeeeee" width="210pt" | Bullet | style="background: #eeeeee" width="140pt" | Muzzle velocity | style="background: #eeeeee" width="140pt" | Muzzle energy | style="background: #eeeeee" width="200pt" | MPBR/zero | style="background: #eeeeee" width="180pt" | Notes |- | style="background: #eeeeee" valign="top"| Weatherby H460500FJ || valign="top"|Hornady DGS || valign="top"| || valign="top"| || valign="top"|/ || Load used Hornady FMJ†, FMJ-IB† now DGS |- | style="background: #eeeeee" valign="top"| Weatherby H460500RN || valign="top"|Hornady DGX || valign="top"| || valign="top"| || valign="top"|/ || Load used Hornady RN†, RN-IB† now DGX |- | style="background: #eeeeee" | Weatherby B460450TSX || Barnes TSX || || || / || Currently in production |- | style="background: #eeeeee" | A-Square Triad || A-Square MS, DT, LL || || || / || Currently in production |- | style="background: #eeeeee" | Conley Precision || Barnes TSX || || || / || Currently in production |- | style="background: #eeeeee" | Conley Precision || Swift A-Frame || || || / || Currently in production |- | style="background: #eeeeee" | Conley Precision || Barnes BS || || || / || Currently in production |- | style="background: #eeeeee" | Conley Precision || Barnes TSX || || || / || Currently in