He is a very knowledgable fellow so I'm sure they're good. Powder left in the reloader's powder measure hoppers for extended periods, overnight or several days, should be avoided. For the comparable loads above, the .450 pushes back with 79.6ft/lb. mbogo45 wrote on Jager Waffen74's profile. There are, however, a few downsides to using the already established brass. It was an elephant hunting trip by Mr Paul Roberts, the owner of Rigby, that led to the development of this cartridge. I have a 450 Rigby as well, that I just had built by American Hunting Rifles in Montana and is based off of a CZ550 Magnum Action (DGR). Always start with a conservative and reduced load then work up to the recommended load in a safe and responsible manner. BP, Your email address will not be published. JavaScript is disabled. .450 Rigby Load Data. However, the Rigby does allow for far greater performance if the recoil can be handled, punching out 500 grains of copper and lead at 2,427fps with a 103.5-grain load of N550. charge weight in grams and grains … Powder Storage in Reloader Hoppers. Your email address will not be published. http://www.realguns.com/loads/450Rigby.htm, http://www.huntingsafaris.net/pdf/reloadingtherigby450rimless.pdf, Hunt The Dark Continent With KMG Hunting Safaris South Africa. The Peregrine Bullets range has boat-tails for ease of loading as well as enhanced ballistics. Pressure is measured at the case mouth or from inside the case according to the CIP. Despite this colossal difference, the .450 Rigby is surprisingly manageable. Gunpowder Charge Weight Velocity m/s Velocity fps; Norma MRP: Max 105.2 Min 99.8: 640 594: 2099 1948 458 Winchester Magnum Load Data. The data given here were obtained in laboratory conditions following strictly the CIP (Commission International Permanente) June 13, 1990 and November 9, 1993 rules. The .450 Rigby is a rimless, bottlenecked cartridge intended for the hunting of heavy dangerous game. These test methods have been deemed to be safe throughout the world. 450 African Express Load Data. The listed maximum loads should never be exceeded. It also requires the use of magnum-length actions and non-standard magazine widths to accommodate the fat cases. It may not display this or other websites correctly. 458 Lott Load Data. All reloading and firing of reloaded ammunition is done at your own risk and Peregrine Bullets can not be held responsible for the correctness of any reloading information provided. 243 Winchester 24" Barrel Twist1: 8 Load Data, 243 Winchester 24" Barrel Twist1: 9 Load Data, 243 Winchester 24" Barrel Twist 1: 10 Load Data, 243 Winchester 26" Barrel Twist 1:10 Load Data, 243 Winchester 28" Barrel Twist 1:10 Load Data, 30-06 Springfield 24" Barrel Twist1: 10 Load Data, 30-06 Springfield Load Data 24" Barrel Twist 1: 14. On paper, the recoil of the Rigby does seem punishing. The cartridge is intended for use in magazine rifles and should not be confused with the .450 Rigby Nitro Express which is a rimmed cartridge for double rifles. It's great to shoot. It does this with considerably less chamber pressure than the Lott – 57,838psi compared with 62,141psi – yet sends the same bullet down range at 156fps more. Unlike some big calibres that kick you abruptly with head-snatching violence, this was more of a long, hard push. The builder sent me his on personal load data, but a disclaimer, I've only used the Barnes loads so use at your own risk. For a better experience, please enable JavaScript in your browser before proceeding. Unlike many modern .458 caliber dangerous game cartridges like the .458 Winchester, .458 Lott or the .460 Weatherby Magnum, the .450 Rigby was designed to operate at more moderate pressures. I'm looking to see if anyone has any additional reloading data for this round. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. I need some reloading data for 500 grain bullets for a .450 Rigby. RDM (Rheinmettal Denel Munition – Somchem Powders) propellant was used for the Peregrine Bullets load development. The .450 Rigby was designed primarily to take heavy, thick skinned, dangerous game species. He concluded that extra weight and bullet diameter would be beneficial for taming the earth’s largest land mammal. The listed maximum loads have been determined according to the respective CIP/SAAMI maximum pressure specification, whichever is lower. The .450 Rigby reaches 2,400 ft/s muzzle velocity with the 500 grain with ease. 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Some PH's & Game Wardens in South Africa helped me as best they could but they could only provide data using Somchem powders. Peregrine Bullets oxygen-free, non work-hardened red-copper bullets are superior in comparison to most competitors’ bullets, thus barrel wear and copper fouling are minimized. The load data published by Peregrine Bullets is intended as a guide only and for use by experienced re-loaders familiar with safe reloading techniques. Please note that due to safety regulations, we can’t suggest or recommend loads or bullets that are not available on this site. CCI 250 primers used. 450 Nitro Express Load Data 3,25" 460 Weatherby Magnum Load Data 458 Belted Express Load Data 3" 450 Rigby Load Data. Peregrine Bullets are tailor made for the reloading connoisseur and his precision shooting needs. Necking up the .416 case to .458, the already generous capacity would be able push a 480-grain bullet with moderate pressure at 2,400fps. All reloading and firing of reloaded ammunition is done at your own risk and Peregrine Bullets can not be held responsible for the correctness of any reloading information provided.