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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles

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Svensson
.224 member

Reged: 29/03/05
Posts: 3

500 Jeffery or 500 A-Square
#28818 - 02/04/05 08:02 PM

I´m thinking about to build a 500 Jeffery or a 500 A-Square on a BRNO CZ 550, but need help to choose wich one of those two calibers. I think that the 500 Jeffery is more fun becourse of that it´s a old cartridge with more nostalgic feelings, but the brass is much more expensive. I´d like to know about the caselife on both calibers if anyone here knows about that.

I allready have a 500 NE built on a Ruger no 1, and that is a nice gun with a lot of power in, but I think it would be fun to have a .500 in a bolt gun too.

Anyone here who like to give some help too choose and who knows about how many times you can reload brass for those two calibers?

I also like to know if anyone here knows about if there is any difference in killing power between caliber .458 (WM or Lott) and .500 (NE, or A-Square, 500 Jeffery)

Best regards
Svensson

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Re: 500 Jeffery or 500 A-Square [Re: Svensson]
#28820 - 02/04/05 09:49 PM

This is just my personal perspective but I feel the 500 Jeffery (and also the 404 Jeffery) have to be in the right rifle to make for the complete package.

On a CZ conversion I would take a 500 A2 everytime. Ease of conversion from a 416 Rigby CZ and brass.

Mike

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Gibbs505
.333 member

Reged: 09/08/03
Posts: 442
Loc: BC, Canada

Re: 500 Jeffery or 500 A-Square [Re: Svensson]
#28853 - 03/04/05 05:52 AM

I have a 505 Gibbs myself! In killing power, I doubt that there is any difference between it and the 500NE, or A-Square, or the 500 Jeffery.

It is a large step up from the 458 Win or Lott though, more frontal area at least!

--------------------
So I can't spell, so what?

Those who beat their swords into ploughshares, will plough for those who don't!

Those who fail to learn from history will be doomed to repeat it

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Oldsarge
.300 member

Reged: 07/02/05
Posts: 180
Loc: SoCal Borderlands

Re: 500 Jeffery or 500 A-Square [Re: Svensson]
#28859 - 03/04/05 08:07 AM

Consider, the .500 Jeff was designed to fit into a standard length action. That means that your CZ 550 has a lot of wasted space. Additionally, because the cartridge is so short, it is really fat. That cuts into your magazine space. So would the totally useless belt on the A-Square. Alphin designed that cartridge (the twin of the .510 Wells) because at the time the .460 Wby was the biggest case he could find. Thinking logically, therefore, if you want the power of a big fifty in a bolt gun, your best choice is the Gibbs. Now if you insist on something kind of wildcatty, you can use a standard .50 barrel and call it the .510 Gibbs. There isn't any particular use for it, but you could do that. IMO all the hullabaloo about the Gibbs having too light a bullet for its diameter is ballistic fluff. Has anyone ever heard an elephant or buffalo complain?

--------------------
Sarge

Holland's .375: One Planet, One Rifle!

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500grains
.416 member

Reged: 16/02/04
Posts: 4732
Loc: Salt Lake City, Utah USA

Re: 500 Jeffery or 500 A-Square [Re: Svensson]
#28947 - 05/04/05 01:36 PM

Svennson,

It will be MUCH easier to get a 500 A2 to feed on a CZ550, than a .500 Jeffery. Just get a CZ5550 set up for 416 Rigby, switch barrels, tighten the extractor, and do a little rail work and you will be in business.

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atkinson6
.375 member

Reged: 26/01/04
Posts: 678
Loc: Idaho

Re: 500 Jeffery or 500 A-Square [Re: 500grains]
#29465 - 14/04/05 06:52 AM

The 505 Gibbs does have more frontal area and probably more knockdown but it sure does not have the penitration of a 458 Lott...
I prefer the 458 Lott on elephant for that reason...and could never tell that the 505 killed Buffalo better than a 458 Lott...but to each his own and the Gibbs is certainly a good caliber.

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