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The most successful cast bullet designs have a round or flattened nose rather than a long, unsupported ogive. Bullet designs with a forward diameter designed to be supported on the rifling lands work best in barrels rifled with wide lands and narrow grooves like the 2-groove M1903-A3 rifles. Forward bearing surfaces of full groove diameter ...
Cast bullets as cast (left), with gas check (center) and lubricated (right). A gas check is a gasket type component of firearms ammunition. Gas checks are used when non-jacketed bullets are used in high pressure cartridges. The use of a gas check inhibits the buildup of lead in the barrel and improves accuracy. [1]
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 ...
The new cartridge, the .360 Buckhammer, or .360 BHMR for short, is based on a .30-30 Winchester case that has been blown out to get rid of the shoulder and necked up to accommodate .358-caliber bullets (the same bullets used in the .35 Remington).
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.
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The 9×39 is based on the Soviet 7.62×39mm case but with the neck expanded to fit a 9.2mm bullet. The final design was completed by N. Zabelin, L. Dvoryaninova, and Y. Frolov of the TsNIITochMash in the 1980s. The intent was to create a more stealthy cartridge for suppressed firearms used by Spetsnaz and other special troops that had more ...