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In January 2009 the Finnish ammunition manufacturer Lapua published Doppler radar tests derived drag coefficient data for most of their rifle projectiles. [1] [2] The predictive capabilities of the custom mode are based on actual bullet flight data derived from Doppler radar test sessions. With this data engineers can create algorithms that ...
Bullets had the manufacturer code over the Quarter number and two-digit year of production engraved on the base (e.g. Pk/2-26 is Zaklady Amunicyjne, Pocisk, 2nd Quarter of 1926). 8mm Lebel "Balle D" bullets were differenced from 7.9mm Mauser bullets by a capital letter "D" inset between the contractor code and the date (e.g. Pk/D/2-26).
The .375 Ruger cartridge case was used by Hornady as the basis for a new extra long range cartridge since it had the capability to operate with high chamber pressures which, combined with a neck and barrel throat optimized for loading relatively long and heavy .308 diameter very-low-drag bullets without the need to seat the bullets deeply ...
Although not originally designed for handguns, several rifle and shotgun cartridges have also been chambered in a number of large handguns, primarily in revolvers like the Phelps Heritage revolver, Century Arms revolver, Thompson/Centre Contender break-open pistol, Magnum Research BFR, and the Pfeifer Zeliska revolvers.
91B Wheeled Vehicle Mechanic (formerly 63B) 91C Utilities Equipment Repairer (formerly 52C) 91D Power Generation Equipment Repairer (formerly 52D) 91E Allied Trades Specialist (formerly 91E and 91W) 91F Small Arms/Towed Artillery Repairer (formerly 45B) 91G Fire Control Repairer (formerly 45G) 91H Track Vehicle Repairer (formerly 63H)
Armor-piercing (AP): A hard bullet made from steel or tungsten alloys in a pointed shape typically covered by a thin layer of lead and or a copper or brass jacket. The lead and jacket are intended to prevent barrel wear from the hard-core materials. AP bullets are sometimes less effective on unarmored targets than FMJ bullets are.
91B – Three seat version with 190 hp (140 kW) Lycoming O-435. [4] 106 built by De Schelde. [8] Swedish Air Force designation Sk 50B. [8] 91B-D - Improved 91B. Three built by De Schelde. [10] 91B-2 – 91B variant for Royal Norwegian Air Force with minor modifications, mainly a constant speed propeller [citation needed]. 25 built by Saab for ...
With the advent of chemical primers, it was not long before several systems were invented with many different ways of combining bullet, powder, and primer into a single package which could be loaded quickly from the breech of the firearm. This greatly streamlined the reloading procedure and paved the way for semi- and fully automatic firearms.