The .577 Nitro Express is a large-bore centerfire rifle cartridge designed for the purpose of hunting large game such as elephant. This cartridge is used almost exclusively in single-shot and double express rifles for hunting in the Tropics or hot climates in general and is a cartridge associated with the golden age of African safaris and ...

The .577/450 Martini–Henry is a black powder, centrefire rifle cartridge. It was the standard British service cartridge from the early 1870s that went through two changes from the original brass foil wrapped case (with 14 parts) to the drawn brass of two parts, the case and the primer.

The .577 Tyrannosaur or .577 T-Rex (14.9×76mm) is a very large and powerful rifle cartridge developed by A-Square in 1993 on request for professional guides in Zimbabwe who escort clients hunting dangerous game. The cartridge is designed for use in "stopping rifles" intended to stop the charge of dangerous game.

2023年8月14日 · The Webley .577 Boxer revolver was a behemoth six-­shooter based on an early five-­shot Tranter. It was a handful weighing 2 pounds, 7.4 ounces. (Photo by Phillip Schreier) Surprisingly, the first centerfire self-­contained handgun round — that of Samuel Johannes Pauly — appeared in 1812 and predated the pinfire by many years.

577 NITRO EXPRESS. These 577 NE loads are made to original 100 grs. of cordite velocity specs, which is 2050 FPS with a 750 gr. bullet in 26-28 inch barrels, but ours are made with modern propellants. Like the 600 NE, the 577 NE is effective because of bullet diameter (.585 inch, the 600NE is .620 inch).

577 Nitro Express (3-Inch) - 750 gr. CUTTING EDGE BULLETS Flat Nose Solid (100 gr Cordite Equivalent - 2,050 fps/ME 6,977 ft-lbs) - 5 Round Box FREE SHIPPING - Purchase 12 or more boxes & get FREE SHIPPING!

.577 Snider (14.7mm) reloading data with 5 loads. Using bullets from Lead. Powders include GOEX - Swiss - KIK, IMR

The 577 Tyrannosaur , a.k.a. 577 T-Rex was the largest Proprietary Cartridge introduced in 1993 by the now closed A-Square Company as an entirely brand new Cartridge for the A-Squire rifle. The 750 Grain Full Metal Jacketed projectile moves at 2,460 Feet per Second, to generate over 10,180 Foot Pounds of Energy.

2024年8月23日 · Your rifle is indeed 577/450 calibre, with a strengthened extractor fitted (SX). Ammo hasn't been available for a long time, so to get it running again you will need to load your own. Brass is available from Bertram, but is expensive at about $5 per case.

The .577 Nitro Express is a rimmed cartridge in the Nitro Express series of big-game hunting ammunition. It is also known as the .577 Nitro Express 3" and there is a variant called the .577 Nitro Express 2.75".[2] The .577 is notable as the standard caliber of …