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Posted: 10/2/2007 6:31:12 PM EDT
| Can anyone tell me what type of firearms use a rebated casing? Going through weapons school and want more information on this. |
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A firearm that uses the same size rim diameter/dimensions for two or more different cartridges is the most common use for rebated rims. It allow the use of a wider cartridge casing; aka bigger bullet, whilst still using the same diameter rim to match the firearm's chamber, extractor and ejectors. A great example to use would be the .41 AE 'Action Express' that was popular with CZ-75, Browning P-35 High Power, and a couple others pistols chambered in 9mm. The .41AE fizzled out as fast as it appeared, circa 1989-'90. It has virtually the same ballistics as the .40S&W  Here's an image of two .50GI's next to a .45ACP [on the right], and a close-up shot of the rebated rims The .50GI is used in the GI Industries Model No. 1 www.guncrafterindustries.com/model1_50gi.shtml This cartridge uses the same size chamber/rim as the .45ACP and is used in a 1911-style pistol enabling you to use both the .45ACP and .50GI using the same magazines and recoil springs. The .41AE and .50GI are the only commercial rebated rim cartridges i can think of now! In WW2 Germany used the MG-151 chambered in 13mm, 15mm, and 20mm. The three cartridges all shared the same size chamber, case rim diameter, and OAL [overall length] It was up to the pilot or situation that determined what caliber to use.  the 20x72RB, 20x80RB, 20x94 and 20x101RB are all rebated rim cartridges the "RB" suffix indicates 'reduced base' on the 20mm's |
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