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With a mold, bullets can be made at home for reloading ammunition, where local laws allow. Hand-casting, however, is only time- and cost-effective for solid lead bullets. Cast and jacketed bullets are also commercially available from numerous manufacturers for handloading and are most often more convenient than casting bullets from bulk or ...
A full metal jacket (FMJ) bullet is a small-arms projectile consisting of a soft core (often lead) encased in an outer shell ("jacket") of harder metal, such as gilding metal, cupronickel, or, less commonly, a steel alloy. A bullet jacket usually allows higher muzzle velocities than bare lead without depositing significant amounts of metal in ...
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.
If these bullets were loaded and fired in the opposite of their intended direction, the full metal jacket bullet might expand like a soft point, and the soft point bullet might perform like a full metal jacket. Soft-point bullets expose the soft lead-alloy core on the forward part of the bullet most likely to be deformed when striking a target ...
Frangible bullets may be lighter or longer than conventional bullets of the same caliber. The jacketed frangible bullet in the center is longer than the outer soft-point bullets with traditional lead cores. Each of the three .30 caliber (7.62 mm) bullets weighs 150 grains (9.7 g) but the lower density frangible core requires greater volume.
Bullet parts: 1 metal jacket, 2 lead core, 3 steel penetrator. Terminal ballistics is a sub-field of ballistics concerned with the behavior and effects of a projectile when it hits and transfers its energy to a target. Bullet design (as well as the velocity of impact) largely determines the effectiveness of penetration. [1]
While the .45 ACP uses .451 inches in diameter for jacketed bullets, and .452 for lead bullets, the .45 Colt still uses .452 inch diameter jacketed bullets and .454 diameter lead bullets, often adding to the confusion between the two cartridges with similar names as the .45 ACP and Model 1911 pistols will often be called ".45 Colt" in common ...
Jacketed soft point (JSP): In the late 19th century, the Indian Army at Dum-Dum Arsenal, near Kolkata, developed a variation of the FMJ design where the jacket did not cover the nose of the bullet. The soft lead nose was found to expand in the flesh while the remaining jacket still prevented lead fouling in the barrel.