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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles
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cordite
.333 member


Reged: 29/01/07
Posts: 341
Loc: NW Montana
458 Lott from 300 weatherby
      #258866 - 10/01/15 06:30 AM

I have a pre64 model 70 that was rechambered (unfortunately!) from 300 h&h to 300 weatherby. It is a nice gun but I am more interested in bigger calibers and cast bullets than I am long range shooting. So with the rechamber and custom stock this rifle no longer has great collector value and I am thinking about making it into a Lott. Seems like a pretty easy conversion at first glance. Would much feed work be required to make it reliable?
I have a big 520 grain gas checked bullet in 458 caliber so the Lott comes to mind. With this nice long action it seems appropriate to stick with a longer round. Any suggestions? Doesn't have to be .458.

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Marrakai
.416 member


Reged: 09/01/03
Posts: 3591
Loc: Darwin, Top End of Australia
Re: 458 Lott from 300 weatherby [Re: cordite]
      #258880 - 10/01/15 12:01 PM

cordite:
I respectfully suggest you will find the Lott case would have no advantage over the .458 Win Mag for shooting cast bullets.

Even on dangerous game IMHO. It has long been my contention that with modern powders (ADI or Hodgdon Extreme) and premium bullets (bonded-core or mono), the .458WM has finally become the cartridge its original designers intended all those years ago. At inception it was let down by 1950s powder and 1890s bullet design!
Jack Lott's flawed hunt in 1959 resulted in one man's answer at the time, but it is redundant today.

So I would suggest the .458 Win Mag.

Just my 2c worth.....

--------------------
Marrakai
When the bull drops, the bullshit stops!
--------------------------------
www.marrakai-adventure.com.au

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JFE
.224 member


Reged: 03/06/07
Posts: 46
Loc: Vic, Australia
Re: 458 Lott from 300 weatherby [Re: Marrakai]
      #259186 - 19/01/15 08:42 AM

While the Win Mag has a better capacity for cast bullets, the Lott has a more cast friendly throat. The drawback of the Win Mag (for cast bullet work) is its wide, long throat. It starts off at 0.469" at the end of the chamber and gently tapers to reach the rifling and is over 1" long. So a cavernous throat with no support for the bullet in a straight tapered case. In contrast the Lott has a relatively short, conventional throat that's around 0.20" long. While you can get the Win Mag to work with cast, it won't be as easy or as flexible as the Lott.

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