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How about a ring shaped rim that slides down the RUM case and expands to .550 inside diameter and then snaps into the existing extractor groove to provide a .600 rim? These would single stack in a slanted magazine and feed at least as smoothly as the 303 and 30-40 Krag. This straight case would hold a .510 bullet with a neck diameter of .540. A 600 gr bullet would have a sectional density of .330 and make 2400 fps for 7800 FPE in an H&H length action. | ||
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??? 50 -110, 510 wells (bigger case) turn the rim down on a 500 nitro jeffe opinions vary band of bubbas and STC hunting Club Information on Ammoguide about the416AR, 458AR, 470AR, 500AR What is an AR round? Case Drawings 416-458-470AR and 500AR. 476AR, http://www.weaponsmith.com | |||
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500 Nitro Express. 510 Nitro Express. Without all the extra work. Ray Arizona Mountains | |||
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My 510HE, my rimmed wildcat, case 3.55 in long, straight case for falling block and break actions.Made by straightening 475 #2 brass, with simple expander.And run though a sizer die... 600 gr at close to 3000 in a bolt test rifle.Throat good for 600 gr round nose bullets, which allows use of bmg spitzer bullets.Ed MZEE WA SIKU | |||
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SSK .510 Whisper .... | |||
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