Search results
Results from the WOW.Com Content Network
The 6.5mm Grendel is an intermediate cartridge jointly designed by British-American armorer Bill Alexander, competitive shooter Arne Brennan (of Houston, Texas) and Lapua ballistician Janne Pohjoispää, as a low-recoil, high-precision rifle cartridge specifically for the AR-15 platform at medium/long range (200–800 yard).
An improved 6.5 PPC variation branded the 6.5 Grendel was marketed by Alexander Arms LLC. [9] Others are the 6.5 CSS marketed by CompetitionShooting.com, the 6.5 PPCX developed by Arne Brennan and optimized for 100–108 grains (6.48–7.00 g) 6.5mm bullets, and the 6.5 BPC developed by Jim Borden and Dr. Louis Palmisano and optimized for 81 ...
The 6.5mm Creedmoor designated as 6.5 Creedmoor by SAAMI, and as 6,5 Creedmoor by the C.I.P. [ 4 ] is a centerfire rifle cartridge introduced by Hornady in 2007. [ 6 ] It was developed by Hornady senior ballistics scientist Dave Emary in partnership with Dennis DeMille, the vice-president of product development at Creedmoor Sports, hence the name.
6.5mm Grendel (6.5×39mm), cartridge designed for the AR-15; 6.5mm Creedmoor, centerfire rifle cartridge; 6.5mm Remington Magnum, belted bottlenecked cartridge; 6.5×42mm, also known as 6.5 MPC (Multi Purpose Cartridge), centerfire rifle cartridge; 6.5×47mm Lapua, smokeless powder rimless bottlenecked rifle cartridge
The cartridge uses a 6.5 Grendel case that has been necked-down to accept a 6.2 mm (.243 in) bullet. [citation needed] The 6mm AR takes advantage of the wide variety of 6.2 mm (.243 in) caliber bullets. Slim, long bullets with high ballistic coefficient are ideal for energy retention at long ranges.
There is little evidence as to the ordinary length of these spears, although estimates based on grave goods indicate that their length ranged from 1.6 to 2.8 metres (5 ft 3 in–9 ft 3 in). [16] The end of the spear was sometimes protected with an iron ferrule, forming a hollow (or, less commonly, solid) cone which fit over the shaft. [17]
The 6.8mm Remington Special Purpose Cartridge (6.8 SPC, 6.8 SPC II or 6.8×43mm) is a rimless bottlenecked intermediate rifle cartridge that was developed by Remington Arms in collaboration with members of the U.S. Army Marksmanship Unit and United States Special Operations Command [6] to possibly replace the 5.56 NATO cartridge in short barreled rifles (SBR) and carbines.
The spear was in use for hunting as early as five million years ago in hominid and chimpanzee societies, and its usage may go back even further. [2] The spear gave the hunter the ability to kill large animals, at ranges as far as the hunter could throw the spear; the Roman pilum , for example, had a range of 30 metres (98 feet).