Читать книгу The Gun Digest Book of .22 Rimfire. Rifles·Pistols·Ammunition онлайн

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With greater energy and flatter trajectory than the 22 WMR, the 5mm Remington may well have been the best rimfire cartridge in modern times. Although the trajectory is not quite as flat as that of the 17 HMR with a 17-grain bullet, the 5mm Remington with its 38-grain bullet is a far more powerful cartridge. Part of the difficulty with the 5mm stemmed from the high pressure, which may have been as high as 35,000 lb/in2. The high pressure caused the case to expand into the extractor notches, which necessitated some changes in the chamber, bolt face, and extractor grooves. Given the propellants available today, it is likely that the remarkable ballistics of the 5mm Remington could be produced with a somewhat lower pressure. Moreover, there are several rifles available today that could probably serve as platforms for the excellent 5mm Remington cartridge. The Ruger 77/22M, Anschutz, Remington 504, CZ 452, and Kimber models come to mind immediately. We can only hope that rifles and ammunition in this outstanding rimfire caliber become available once again. If not, a 20-caliber cartridge based on a necked down 22 WMR case but utilizing the superb Hornady V-Max polymer tipped bullets would be very interesting and useful. Given the fine rifles that are available in 22 WMR caliber, it should be a simple matter to produce a 20 caliber cartridge based on that case.