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Cast bullets require a longer bearing surface than jacketed bullets to maintain an equivalent alignment with the bore of the firearm; because the softer cast bullet can be more readily deformed. The most successful cast bullet designs have a round or flattened nose rather than a long, unsupported ogive.
Gas checks are most commonly found in the form of a thin cup or disc made of a ductile metal. Copper, zinc, aluminum, and alloys such as brass have been used. A bullet designed to accept a gas check has a rebated base shank which permits attachment of the check without altering the maximum diameter of the bullet.
Suitable .358 in (9.1 mm) bullets range in weight from 150 to 300 grains (9.7 to 19.4 g). Using a 250-grain (16 g) bullet, the .35 Whelen will generate 3,500 ft⋅lbf (4,700 J) at the muzzle from a 24 in (61 cm) barrel. The .35 Whelen is not the ballistic twin of the .350 Remington Magnum and falls about 500 foot-pounds short. With the correct ...
Has the same advantages for target shooters but is easier to load into the gun and works more reliably in semi-automatic guns. This design is also superior for some hunting applications. Truncated cone: Also known as round nose flat point, etc. Descriptive of typical modern commercial cast bullet designs.
A hunting flat nosed cast bullet will hold together without expanding and carry a large amount of air envelope with it causing a great amount of cavitation and wounding. Since it is cavitation that does most of the damage when a bullet strikes a game animal this means the flat nose bullet is an extremely effective hunting design.
By design, fully jacketed projectiles have less capacity to expand after contact with the target than a hollow-point projectile or a soft-point projectile.While this can be an advantage when engaging targets behind cover, it can also be a disadvantage as an FMJ bullet may pierce completely through a target, leading to less severe wounding, and possibly failing to disable the target.
.950 JDJ cases are approximately 70 mm in length, and are based on a 20×102mm Vulcan case shortened and necked up to accept the .950 in (24.1 mm) bullet. Projectiles are custom-made and most commonly weigh 3,600 grains (230 g) which is 8.2 ounces or over half a pound.
SMc cartridges were developed in an attempt to produce an efficient cartridge combining low recoil, low heat, and high velocity. [4] The 5 mm/35 SMc has produced velocities in excess of 4,800 ft/s (1,500 m/s) shooting a 30-grain (1.9 g) molybdenum disulfide-coated Berger bullet from a 28-inch (71 cm) Pac-Nor barrel, far higher than its commercial counterpart the .204 Ruger.