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The following are calculations of conventional ballistic data for the 7.5 FK® cartridge. F9: All copper monolithic wide meplat flat nose. This bullet is designed to create a wide and very deep permanent wound channel in addition to a very high dynamic shock effect.
Measurements of standard 7.5 cartridges loaded with 95 gr (6.2 g) bullets showed a muzzle velocity of 2,000 ft/s (610 m/s) out of a 5.3 in (13.46 cm) barrel equal to 4 in (10.16 cm) of free bore and a muzzle energy of 845 foot-pounds force (1,146 J), which is almost 50% higher than the 357 magnum 125 grain JHP when using premium quality high ...
Typical velocities to expect from the 25.6” barreled K31 without exceeding recommended pressures are 2900fps with 150gr bullets, 2750fps with 165 to 168gr bullets, 2600fps with 178-180gr bullets and 2400fps with 200gr bullets.
20 Φεβ 2017 · Even the monstrous 7.5mm FK, with its 71% greater muzzle energy than the 9mm, only produces slightly more energy at 300 meters, despite the ballistic coefficients of the two rounds behind very similar.
17 Οκτ 2019 · While the GP11’s bullet configuration has much to do with the K31’s reputation for precision (see below), handloaders have long known the Swiss rifle shoots very well with carefully assembled cartridges topped with quality .308-inch diameter jacketed bullets.
25 Ιαν 2021 · FK BRNO Ammo. There are three 7.5FK loads currently available in the U.S. The first is a solid copper hollow point, which steps out of a 6-inch barrel at around 2,000 fps (approximately 50 fps slower from the FK BRNO PSD’s 5.3-inch tube).
29 Μαΐ 2022 · Ballistics wise, it's performance in gel is very impressive. Massive hydrostatic shock, heavy penetration, large permanent wound cavity; all attributes we would expect from an intermediate rifle round (300 BLK / 5.56x45 / 7.62x39).
