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#2119472 03/30/08
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Hello All
Just read an old article in Bear Hunter mag and it mentioned this wildcat (?) cartridge and I don't seem to be able to find it mentiond anywhere else. Has someone here heard or know of it?
Thanks Nelson

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http://www.470mbogo.com/BigBoreCompendium/

500 A-Square/510 Wells

The 500 A-Square was designed by Art Alphin of the A-Square Company (www.a-squarecompany.com) for maximum penetration and shock power on dangerous game. Pushing a 600 grain bullet at 2400 f.p.s., the 500 A-Square is everything that a bolt gun afficianado could want. It uses a 460 Weatherby case necked up to .510" and slightly improved. The 510 Wells preceded the 500 A-Square by well over 20 years and was designed by Fred Wells of Phoenix, Arizona. Ballistics for the two cartridges are identical and selection of one over the other is merely a matter of personal preference. The 500 A-Square has a cartridge overall length of 3.75" and due to length will only fit into relatively large actions such as the CZ550. Some may be tempted to rebarrel a Weatherby Mark V or a Sako TRG to 500 A-Square thinking it a cheap and easy route to a big bore dangerous game rifle. Although the debate about controlled feed versus push feed actions is best left to another article, the author would not contemplate use of a Weatherby or Sako for this purpose. Factory rifles in 500 A-Square are available from the A-Square Company of Kentucky. B. Searcy & Co. offers bolt rifles in 510 Wells, as does Fred Wells (www.cutrifle.com/gunsmithing.html).



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I used to have a .510 Wells that was built on a Weatherby action. It was a big boomer. I never loaded it up to the point to know if the published ballistics of about 10,000 foot pounds of energy was really possible. Also, the rifle was just under 9 pounds and had no muzzle brake. Oh, and the stock fit me poorly too. I don't think a cartridge needs to be any bigger than this for anything this planet has to offer.



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boltman,
I thought I was nuts with a 470Capstick just under 9lb ... you just made me feel a whole lot better!! Boy, she'd have been a handfull!!
Cheers...
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You want to talk about nuts. There's an old guy (in his 80's) at my gun club that has a 510 Wells handgun. It's built on a Rem XP 100 action. He has to remove the bolt for each shot to drop a round into the chamber. Recoil has to be felt to be appreciated.

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Hello All
Thank you all for the info. Sounds though that it was above and beyond for Blackies as this author used it for.
nelson


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