.240 Apex

UK sporting rifle cartridge .240 Magnum Rimless England Rifle Holland & Holland 1919 Holland & Holland Belted, bottleneck .245 .274 .403 .450 .467 .035 2.49 3.21 Kynoch # 81 100 SP 2900 1865 Cartridges of the World.Barnes, Frank C., Cartridges of the World, 15th ed, Gun Digest Books, Iola, 2016, 978-1-4402-4642-5. .240 Magnum Flanged Rimmed, bottleneck .245 .274 .402 .448 .513 UNK 2.5 3.25 Kynoch # 81 100 SN 2775 1711 28 KynochKynoch Ammunition, "Big Game Cartridges", www.kynochammunition.co.uk, archived, 15 August 2016. The .240 Magnum Rimless Holland & Holland (also known as the .240 Apex and the .240 Super Express) is a centrefire sporting rifle cartridge developed in English gunmakers Holland & Holland no later than 1919,https://digitalcollections.nypl.org/items/510d47e2-cdda-a3d9-e040-e00a18064a99 Holland & Hollands "Apex" .240 super express rifle primarily for use in hunting deer and plains game. As it was common for rimless hunting cartridges, a rimmed (beltless) variant, at the time called just "Holland's 240 Super Express"H&H 1933 catalog and now sometimes named .240 Flanged Magnum or .240 H&H Flanged, was developed simultaneously for break-barrel rifles and combination guns.https://www.cartridgecollector.net/240-flanged-magnum 240 FLANGED MAGNUM | Cartridgecollector.net Overview The ballistic performance of the .240 H&H in factory loads is very similar to that of the .243 Winchester, with a 100 gr g on bullet with a diameter of .245 inches (contrary to the .240 name) giving a muzzle velocity of approximately 2900 ft/s m/s. When it is loaded at the same pressure as the .243 WSSM using modern powders, the .240 H&H has the potential for slightly better performance. Most bolt-action rifles made for the .240 H&H will be amply strong enough to handle hand-loaded cartridges at high pressure. +.240 H&H Performance Comparison Cartridge Bullet weight Muzzle velocity Muzzle energy .240 H&H Magnum 100 gr g on 2900 ft/s m/s on 1865 ft·lbf J on .240 Weatherby Magnum 100 gr g on 3406 ft/s m/s on 2576 ft·lbf J on .242 Rimless Nitro Express 100 gr g on 2800 ft/s m/s on 1740 ft·lbf J on .243 Winchester 100 gr g on 2960 ft/s m/s on 1945 ft·lbf J on .243 Winchester Super Short Magnum 100 gr g on 3110 ft/s m/s on 2147 ft·lbf J on .244 H&H Magnum 100 gr g on 3500 ft/s m/s on 2720 ft·lbf J on .246 Purdey 100 gr g on 2950 ft/s m/s on 1930 ft·lbf J on 6 mm Lee Navy 100 gr g on 2680 ft/s m/s on 1595 ft·lbf J on 6 mm Remington 100 gr g on 3100 ft/s m/s on 2133 ft·lbf J on See also List of rifle cartridges 6 mm caliber References Category:Pistol and rifle cartridges Category:Magnum rifle cartridges Category:British firearm cartridges Category:Holland & Holland cartridges