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The 5.45×39mm cartridge is a rimless bottlenecked intermediate cartridge.It was introduced into service in 1974 by the Soviet Union for use with the new AK-74.The 5.45×39mm gradually supplemented and then largely replaced the 7.62×39mm cartridge in Soviet and Warsaw Pact service as the primary military service rifle cartridge.
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.
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If an archer's arrows are grouping on target but off center, this shows consistent basic form, with better results achievable after slight adjustments. [ 4 ] [ 11 ] On the equipment side, bow stabilizers have been used since the 1960s by tournament competitors and by bow hunters to counteract the torque of shooting the arrow.
Walmart also said it would lower ... Retailers have suffered from weak sales due to customers’ struggle with high prices. Target reported a 3.1% drop in net sales from a year ago and a 3.7 ...
The Taylor KO factor multiplies bullet mass (measured in grains) by muzzle velocity (measured in feet per second) by bullet diameter (measured in inches) and then divides the product by 7,000, converting the value from grains to pounds and giving a numerical value from 0 to ~150 for normal hunting cartridges.
This article originally appeared on GOBankingRates.com: Target’s Good & Gather vs. Walmart’s Great Value: How These 7 Grocery Staples Compare in Price Related articles AOL
Ballistics by the Inch (often called BBTI) was a project to test the performance characteristics of a variety of common handgun calibers/cartridges. The initial testing was done in 2008 and tested the velocity of 13 common handgun cartridges as it related to firearm barrel length.