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 Holland & Holland Limited is a British gunmaker and luxury clothing retailer based in London, England, which sells handmade sporting rifles and shotguns. The company holds two Royal Warrant of Appointment (United Kingdom), royal warrants. His ...

no later than 1919, primarily for use in hunting

deer A deer (: deer) or true deer is a hoofed ruminant ungulate of the family Cervidae (informally the deer family). Cervidae is divided into subfamilies Cervinae (which includes, among others, muntjac, elk (wapiti), red deer, and fallow deer) ...

and

plains game Plains game is well established in literature and conversation as the sporting hunter's generic term for all those fair-game species of antelope and gazelle which are to be found - typically in rather open plains or savanna habitats - throughout su ...

. As it was common for rimless hunting cartridges, a rimmed (beltless) variant, at the time called just "Holland's 240 Super Express" and now sometimes named .240 Flanged Magnum or .240 H&H Flanged, was developed simultaneously for break-barrel rifles and

combination gun A combination gun is a firearm that usually comprises at least one rifled barrel and one smoothbore barrel, that is typically used with shot or some type of shotgun slug. Most have been break-action guns, although there have been other design ...

Overview

The ballistic performance of the .240 H&H in factory loads is very similar to that of the .243 Winchester, with a bullet with a diameter of .245 inches (contrary to the .240 name) giving a

muzzle velocity Muzzle velocity is the speed of a projectile (bullet, pellet, slug, ball/ shots or shell) with respect to the muzzle at the moment it leaves the end of a gun's barrel (i.e. the muzzle). Firearm muzzle velocities range from approximately t ...

of approximately . 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 Bolt action is a type of manual Action (firearms), firearm action that is operated by ''directly'' manipulating the bolt (firearms), turn-bolt via a cocking handle, bolt handle, most commonly placed on the right-hand side of the firearm (a ...

rifles made for the .240 H&H will be amply strong enough to handle hand-loaded cartridges at high pressure.

References

{{DEFAULTSORT:240 HandH Magnum Pistol and rifle cartridges Magnum rifle cartridges British firearm cartridges Holland & Holland cartridges

Overview

See also

References