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

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chuck375
.333 member

Reged: 13/10/07
Posts: 445
Loc: Colorado Springs CO

.510 caliber expanding bullets
#149900 - 09/01/10 01:07 AM

Hi, I know there's lots of experience here on the subject. I'm shooting a 500 Jeffery at what is essentially 500 NE velocities (570g bullet at 2175 fps), which is the point at which I can swing and shoot the rifle naturally without being overly concerned about recoil.

My question is what expanding bullet(s) do you folks recommend for cape buffalo and Alaskan brown bear, realizing that these may be two different bullets. I want something that will expand to close to double caliber, but will penetrate and hold together. I'm shooting 570g TSX's right now, but am a little concerned about them opening up at these velocities. I know North Fork plans to come out with their soft points in .510 caliber soon as well, and of course a the 570g and 600g Woodleigh Weld Cores and Protected Points are in the mix as well.

Thanks much,

Chuck

--------------------
"There's a saying in prize fighting: Everyone's got a plan until they get hit"

Michael Douglas "The Ghost And The Darkness"

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DarylS
.700 member

Reged: 10/08/05
Posts: 26992
Loc: Beautiful British Columbia, Ca...

Re: .510 caliber expanding bullets [Re: chuck375]
#149904 - 09/01/10 02:38 AM

I don't know about cape buff - but a cast flat nose WW bullet will work wonders on a big bear. They will expand and still drive deeply - lengthwise, if that's what you want.

The late, great Elmer Keith once advised me to use the 560gr. Lyman flat nose for cape buffalo from my .458, driven at around 2,050fps. I am sure it would have done the job. One merely hardens them to act as solids, or leaves them as-cast for some expansion.

Woodleigh must make jacketed softs for the .500's.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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500grains
.416 member

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

Re: .510 caliber expanding bullets [Re: DarylS]
#149919 - 09/01/10 05:36 AM

I think that you are right the Barnes may be a bit slow to expand for you.

Personally I would use a Woodleigh or the new North Fork. I have not tried the new North Fork, but the old ones were excellent, and of course the Woodleighs are excellent.

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chuck375
.333 member

Reged: 13/10/07
Posts: 445
Loc: Colorado Springs CO

Re: .510 caliber expanding bullets [Re: 500grains]
#149958 - 09/01/10 01:10 PM

Thanks, I'm anxiously awaiting the new North Forks, I think the Woodleighs, particulary the 600g PP should work well too. I've done my load development with the 570g TSX's but I don't have an imminent hunt so I have time to do some more. I'll work up a load with the Woodleigh 600g PP while I'm waiting for the North Forks to come out. ...

Thanks to both of you,

Chuck

--------------------
"There's a saying in prize fighting: Everyone's got a plan until they get hit"

Michael Douglas "The Ghost And The Darkness"

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chuck375
.333 member

Reged: 13/10/07
Posts: 445
Loc: Colorado Springs CO

Re: .510 caliber expanding bullets [Re: chuck375]
#151651 - 24/01/10 12:16 PM

I picked up 50 of the new .510 caliber 570g Swift A-Frames at SCI Reno on Thursday. They showed progressive bullet expansion examples from their test tank from 1500 fps to 2250 fps. They looked awful good, I bought 50 ...

Chuck

--------------------
"There's a saying in prize fighting: Everyone's got a plan until they get hit"

Michael Douglas "The Ghost And The Darkness"

Edited by chuck375 (24/01/10 12:16 PM)

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Homer
.416 member

Reged: 07/04/09
Posts: 3081
Loc: Canberra, Australia

Re: .510 caliber expanding bullets [Re: chuck375]
#151734 - 25/01/10 08:52 AM

G'Day Fella's,

I would firstly like to say, that I have absolutely no experience with this or any other truly Big Bore cartridges but according to the 2010 Woodleigh catalog, all 0.510" bullets designed for the .500 Jeffery are designed to expand at an impact velocity (IV) of 1800 to 2200 fps!
The only exception to this, is the 600 grain PP SN, with a IV range of 1800 to 2250 fps.

Hope this is of some help and Good Hunting!

HooRoo
From
Hammer

--------------------
"Beware the Lolly Pop of Mediocrity,
Lick it Once and You Will Suck Forever"

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