Hellsing ARMS Casull

The Hellsing ARMS .454 Casull Auto (usually referred to simply as "Casull (カスール,)" is a very powerful handgun and one of the first personal firearms wielded by Alucard.

This weapon is the first custom handgun made by Hellsing and was specifically designed by Walter C. Dornez. It's essentially a very big semiautomatic pistol, with a length of 39cm. It's chambered for the mighty .454 Casull round, which finds use primarily in hunting large game, such as deer and bears. Of course, these bullets are special, being made out of silver obtained from melted holy relics, with an exploding property as well, making for a rather devastating cartridge against the legions of the night.

Profile
The Casull is a semi-automatic magnum pistol, based on two pre-WW1 handgun designs by Colt: the M1903 and M1905 pistols (the early versions of the M1911). The gun weighs approximately 6 kg unloaded and has a magazine capacity of six .454 Casull cartridges. Its appearance is also similar to the AMT Automag III. The Casull is believed to be based upon the Colt 1911 (or its variants like the longslide), however, it also bears a resemblance to early model Colt pistols. In some close-ups, one may note that the hammer is never fully cocked, indicative of either a double-action or fast-action mechanism similar to the Daewoo DP51. The lengthy barrel and slide give this gun incredible accuracy, and the weight at the front of the gun makes the massive round significantly more controllable. Something this extreme suits Alucard perfectly.

The overall design of the Casull is simple, using the Browning short recoil mechanism. Its most recognizable feature is its long slide, counteracting the weapon's heavy recoil with its weight. The barrel is 10 inches long (specified on the slide) and finished with titanium nitride which gives it a characteristic gold color.

Stats

 * Caliber: 454 Casull Magnum/13mm Rounds
 * Total length: 335mm
 * Weight: 4kg
 * Magazine: 7+1 Rounds
 * Inscription:


 * HELLSING ARMS WEAPON Hellsing 454 Casull INDUSTRIAL CO.LTD.

Usage
The gun fires custom-made explosive .454 Casull rounds, with the steel bullets bearing a core made from a melted silver Christian cross from Manchester Cathedral. They are used in a six-round single-stack magazine. The Casull is able to kill normal vampires with only 1 shot. It is too heavy and unwieldy for a human to use, yet a perfect match for Alucard's strength. Although Alucard has reloaded it at many points throughout both the manga and anime, Hirano has joked in the back of volume 1 that "They're all cosmoguns that can hold a million rounds". This is also evidenced in the first OVA, where Alucard takes out a large group of ghouls without reloading.

Ammunition
Early on, Alucard used the Casull alone to terminate all sorts of vampires, including the Cheddar Priest. After acquiring another weapon, he still uses the Casull along with this new weapon. During the flashbacks to World War II (specifically 1944), which is seen in much of Ultimate's promotional material, Alucard is seen using this same weapon. This is anachronistic, as the .454 Casull round was developed in 1957.

Contradictions with the ammunition
Alucard's first gun is chambered in .454 Casull (11.23mm), however, he claims that it fires 13mm rounds. A possible explanation would be that the gun was originally chambered in .454 Casull, but now fires a custom round necked up to 13mm, as the casings shown ejected by the pistol are bottle-necked and