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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.
130-grain (8.4 g) – soft point 150-grain (9.7 g) – round nose The next important change in the history of the rifle bullet occurred in 1882, when Lieutenant Colonel Eduard Rubin , director of the Swiss Army Laboratory at Thun, invented the copper-jacketed bullet — an elongated bullet with a lead core in a copper jacket.
Conversion from kilo grain feet per second to newton-seconds is trivial, since both the grain and foot is based on SI units. One troy grain is defined as 0.064 798 91 grams exactly [ 1 ] and one international foot is defined as 0.3048 meters , giving the exact conversion factor of 0.019 750 707 768 .
The 115 gr (7.5 g) 6.8-round has a higher muzzle energy of 1,694 ft⋅lb (2,297 J) due to its greater velocity, while the 125 gr (8.1 g) 300 BLK round has a muzzle energy of 1,360 ft⋅lb (1,840 J). Both rounds were made to be used in an easily converted AR-15 .
Bullets ranging in weight from 100 gr (6.5 g) to 115 gr (7.5 g) should be chosen for these deer species. Although the .257 Weatherby is used as an elk and moose cartridge with success in North America, the cartridge is thought of as being ill-suited for these heavier deer, with elk weighing on average 700 lb (320 kg) and moose on average ...
The 5% treatment also caused less irritation compared to 10% minoxidil. It’s not all bad news for the higher strengths, though. If 5% minoxidil doesn’t kick your hair follicles into shape, the ...
Check out Butterball’s thawing calculator, ... Thaw times by weight. 10-pound turkey: 5 hours of thawing in cold water. 12-pound turkey: 6 hours of thawing in cold water ...
In evidence-based medicine, likelihood ratios are used for assessing the value of performing a diagnostic test.They use the sensitivity and specificity of the test to determine whether a test result usefully changes the probability that a condition (such as a disease state) exists.