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I was just wondering if the AR-10 would handle a 475 B&M Cartridge? If so, who makes barrels, uppers, ext? I think the idea of a AR platform rifle that can take any game on the planet would be cool. "though the will of the majority is in all cases to prevail, that will to be rightful must be reasonable; that the minority possess their equal rights, which equal law must protect, and to violate would be oppression." ---Thomas Jefferson | ||
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Michael has the 458 and 50 B&M SA which uses the RSAUM length case in his DPMS semi autos. If you want a 475 on the AR-10 I'd recommend going with the same case length - it would be a new B&M cartridge. Jim  "Life's hard; it's harder if you're stupid" John Wayne | |||
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Sorry, must have Had a brain fart, I meant 475 B&M "though the will of the majority is in all cases to prevail, that will to be rightful must be reasonable; that the minority possess their equal rights, which equal law must protect, and to violate would be oppression." ---Thomas Jefferson | |||
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canadian Magazine length is the main issue here. The 475 B&M is 2.25 inches, most all of the .474 bullets are way too long for magazine, same as the other B&Ms. To work through the magazines you have to have a 2 inch case--50 B&M SA--458 B&M SA are both 2 inch cases. A .474 would have to be the same. JD at SSK Industries handles all the B&M SA's. While I have a couple of them, they are big fun no doubt, but just not something I can sink my teeth into. While I have done some load data on these, I just can't keep enough interest to push things. JD was here a few weeks ago, he discovered the 9.3 B&M and the 210 Raptor from CEB. The 9.3 B&M is also a 2.25 inch case, however with the Raptor seated proper it will work in the magazine. JD took samples home with him, and they are busy now building a AR with the 9.3 B&M. I really don't know how much pressures a SA can handle compared to a bolt gun, but my load for that 9.3 210 Raptor does 2950 fps in a 20 inch barrel--pretty serious stuff! Just FYI Michael http://www.b-mriflesandcartridges.com/default.html The New Word is "Non-Conventional", add "Conventional" to the Endangered Species List! Live Outside The Box of "Conventional Wisdom" I do Not Own Any Part of Any Bullet Company, I am not in the Employ Of Any Bullet Company. I do not represent, own stock, nor do I receive any proceeds, or monies from ANY BULLET COMPANY. I am not in the bullet business, and have no Bullets to sell to you, nor anyone else. | |||
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Thanks Michael! That is what I was afraid of. BTW what kind of velocity are you getting out of the 50 B&M SA? "though the will of the majority is in all cases to prevail, that will to be rightful must be reasonable; that the minority possess their equal rights, which equal law must protect, and to violate would be oppression." ---Thomas Jefferson | |||
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I look at the 50 SA as a lighter bullet cartridge, and I probably have not done enough work with it truth be known, at least not in a semi. 300 Hornady--2492 fps 325 Barnes X--2360 fps 350 Brass NonCon--2300 fps 375 BBW#13--2130 fps Various 400s--2000 fps. Michael http://www.b-mriflesandcartridges.com/default.html The New Word is "Non-Conventional", add "Conventional" to the Endangered Species List! Live Outside The Box of "Conventional Wisdom" I do Not Own Any Part of Any Bullet Company, I am not in the Employ Of Any Bullet Company. I do not represent, own stock, nor do I receive any proceeds, or monies from ANY BULLET COMPANY. I am not in the bullet business, and have no Bullets to sell to you, nor anyone else. | |||
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