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Thread: 458 lott load

  1. #1
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    Default 458 lott load

    Hello,
    I just joined the forum and and would like to ask some of you expert reloaders about loading the 458 lott with 300gr and 350gr loads. I have a barnes manual 3 that covers the older bullets they offered but nothing I have seen yet covers any other manufacture. Please help me tame my Ruger #1 a little with a reloaders cure.

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    Try the Accurate Reloading Forum and ask the same question in the Big Bore forum if you don't get some responses here.
    Tennessee

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    Thank you for the info. Hopefully they might help me out.

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    Moderator Paul H's Avatar
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    Both my 458 lotts shot the 350 speer and 350 well with 76-80 gr of Reloader 7 and produced 2400-2500 fps. And yes, 350 gr loads drop the lott to 375 H&H levels of recoil which makes it much more enjoyable to shoot.

    You can always use 458 win mag data as a starting point for lott loads. I did that quite a bit as I was loading for the lott before Hornady produced commercial ammo, and hence data was scarce.

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    I have been reloading for about 2 years and have never used any reloader brand powders. IMR and Hodgdon have been my main power sources. This is still mostly new to me. I bought the 458 lott dirt cheap ($250) other wise I wouldn't have one. 45-70's and 460 S&W had been my 45 arsenal until now.

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    Moderator Paul H's Avatar
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    I'm sure there are other suitable powders, but I've found RL 7 to be an outstanding powder for every application that it is suitable.

    The nice thing about the 458 lott is you can download it to any level you want.

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    Thank's for the insight. How far can a person keep adding on to 458 win loads before they should stop? How strong is a Ruger #1 action compared to bolt actions? I read that loads depend on how close the bullet is in comparison to the lands because of pressure build ups. Can you help me out here?

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    Moderator Paul H's Avatar
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    You're on your own when working with non published loads, but my personal approach which I can't recomend, is that since the lott runs ~150 fps faster than the win mag, I used a chrono to work up until I was ~150 fps over 458 win mag data (keeping an eye on pressure indicators) and then stopped.

    With the 350 gr loads, I never went beyond 458 win mag velocity, because I was after milder recoil, and the accuracy in my gun was very good at 2400-2500 fps.

    The Ruger #1 is a very strong action. I've never shot a #1 458 lott but have heard that it lets you know each and every time you shoot it. Which I assume is part of the reason you got such a good deal, it kicked the snot out of the previous owner.

    The 458 lott was the first cartridge I fired where with full patch 500 gr loads, I had to limit my shooting sessions. 10 rounds during a lunch time range session was my limit, and one day I stopped after 7 shots. Neither of my lotts hurt me, but the recoil is at a level that you have to put alot of concentration in getting a good trigger break and not flinching. I've burned off 30 of the 350 gr loads with no problems, but the 500 gr loads are a whole different kettle of fish in terms of recoil.

  9. #9
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    I have the Barnes #4 and the Hornady #7 manuals and they both have data for the Lott.

    The Barnes manual doesn't have any data for 350 gr loads. Hornady has half of a page or so.

    Pm your phone number and I'll help you out.........I type too darn slow
    USN Seabee '90-'95, NRA Life Member

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    Speer #14 has data for 350 grain bullets as well. They list 8 powders: H322, Ramshot TAC, Benchmark, Relaoder 10X, Reloader 7, IMP 4198, AA 2015 and Viht N133. Let me know if you want any of the data, I hate to type in the whole thing as prof reading it gets to be a lot of time.

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    Thank you,
    I'll do a search online and order a copy of the manual.

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