The US Army Research Laboratory has a newly developed experimental setup consisting of a sensor array that allows for expedient and accurate measurement of projectile flight noise. This study examines the effects of projectile flight diameter on the peak sound pressure level (SPL) of the bullet in...
Bullet has a guiding part (2) of field diameter. Preferred Features: The bullet has a long transition part (3) of field to pulling diameter. The shape of the tip (1) is random and also the middle and rear parts. The bullet is produced by casting, pressing or rotating....
optical systemBased on laser-scan measuring principle, an optoelectronic non-contact inspecting system for detecting the diameter of bullet is presented. The measuring principle of the system is briefly introduced. The characteristics of the scanning speed are theoretically analyzed for the sake of the...
Tail-stabilised blank bullet; has evenly spaced brake elements that move out of bullet to enlarge its diameter during bullet flight by action of centrifugal force above given bullet rotation speedThe bullet (1) has a brake device (10), which has several evenly distributed brake elements (6). ...
Bullet configurationPenetration depthThis research conducts 300 small-scale ammunition experiments using moderate bullet speeds and a variety of bullet configurations in order to understand the relationship between penetration behavior and bullet shape. To maximize the survivability of soldiers and reduce ...
The die for calibrating lead bullets consists of a cylinder (2) of hardened high alloy steel with a stepped bore. The upper part of the bore is polished to match the diameter of the guide ring (5) around the cast bullet (4). The middle section of the bore corresponds to the diameter...
A bullet for hand weapons with higher muzzle velocities is made of copper or of copper alloys and has a number of bands (D1, D2) around the shank to guide and stabilise the bullet. The front band (D1) is larger than the other bands, both in width and diameter, to provide a ...
This has a cylindrical chamber centred on the axis, whose diameter (d1) is roughly equal to the calibre of the bullet, the chamber being adjacent to the core. The length of the inlet zone (L4+L5) can be approximately equal to that of the bullet.PIERRE BERGES, GASTON REHM ET HENRI ...
Tail-stabilised blank bullet; has evenly spaced brake elements that move out of bullet to enlarge its diameter during bullet flight by action of centrifugal force above given bullet rotation speedThe bullet (1) has a brake device (10), which has several evenly distributed brake elements (6). ...
This has a cylindrical chamber centred on the axis, whose diameter (d1) is roughly equal to the calibre of the bullet, the chamber being adjacent to the core. The length of the inlet zone (L4+L5) can be approximately equal to that of the bullet....