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  #1  
Old 01-26-2011, 06:32 PM
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458 lott reduced loads


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Looking for reduced loads for target practice with the 458 lott. What bullet and what powder? Cheap bullets, maybe something made for the 45/70. Any help would be appreciated.
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Old 01-27-2011, 05:18 AM
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There was another thread with this title a while back:

http://www.shootersforum.com/showthread.htm?t=64281

Maybe it will help.
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Old 01-27-2011, 06:16 AM
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The trouble with loading these large bore Cartridges with light loads is that you can experience a "Hang-fire". You'll need to place some cotton in the case to hold light load charges next to the primer.
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Old 01-27-2011, 11:16 AM
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Not with Trail Boss. Just fill the case 70% to start and work up toward 100%, stopping at the best accuracy point inbetween. Just don't compress it. That's the only thing that can raise pressure. Otherwise, even a full case behind a cast bullet is only going to be around 50% of maximum pressure for the cartridge. This will be somewhere in the range of just 22 to 30 grains because this powder is so bulky. Bullet is up to you. Try some 300 and 350 grains cast lead bullets for .45-70.
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Old 01-27-2011, 02:28 PM
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Thanks guys. That was where I was going to start. Use trail boss at around 20+ grains. Could I use cheap plated bullets with a load like this?
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Old 01-28-2011, 03:00 AM
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Quote:
Originally Posted by unclenick View Post
Not with Trail Boss. Just fill the case 70% to start and work up toward 100%, stopping at the best accuracy point inbetween. Just don't compress it. That's the only thing that can raise pressure. Otherwise, even a full case behind a cast bullet is only going to be around 50% of maximum pressure for the cartridge. This will be somewhere in the range of just 22 to 30 grains because this powder is so bulky. Bullet is up to you. Try some 300 and 350 grains cast lead bullets for .45-70.
SR-4759 powder would be a good choice for light loads. The reason I mentioned to place a piece of cotton on top of a light load is that I once tried a light plinking load in my .458 X 2" AMERICAN chambered rifle. I was using lead cast bullet & Unique powder and experienced a hang fire. I then used a piece of cotton to hold the powder next to the primer. REMEMBER this should ONLY be done with very light loads & not with full loads.
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Old 01-28-2011, 07:33 AM
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Davers,

Trail Boss is about twice as bulky as 4759. Lee's VMD chart has TB at 0.2172, while SR4759 is given 0.0993. TB is just newer powder technology and it has changed light load possibilities because it can fill the case 100% without making excess pressure. Worrying about ignition problems due to poor case fill just goes away with that.

Lots of folks use polyester pillow stuffing to hold powder back against the primer. The idea is that it doesn't add significant volume because it melts to something paper thin (assuming the load has enough pressure and heat to melt it at all). Kapoc was once popular for the purpose. It's a natural fiber kind of like cotton. The main difference is that it is lighter (it floats) and is water resistant so it won't pick up moisture that might get stuffed into the case with it. But I expect any tufted hydrocarbon fiber, natural or synthetic, is way better than any of the cereal fillers that used to be used but that could ring a chamber.



Gunchamp,

Yes, you can run plated bullets if you prefer. In rifle loads there is enough pressure margin that TB doesn't seem to much care what the bullet is made of.
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Last edited by unclenick; 01-28-2011 at 07:35 AM.
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Old 01-28-2011, 08:26 AM
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Quote:
Originally Posted by unclenick View Post
Davers,

Trail Boss is about twice as bulky as 4759. Lee's VMD chart has TB at 0.2172, while SR4759 is given 0.0993. TB is just newer powder technology and it has changed light load possibilities because it can fill the case 100% without making excess pressure. Worrying about ignition problems due to poor case fill just goes away with that.
You're correct about the newer powders. When I was using light plinking loads in my .458X2" some 25 years ago, we didn't have "Trail Boss" or other more modern powders. Back then we just had IMR-4759 or other powders we used for light loads like Unique.
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Old 01-28-2011, 03:11 PM
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Thanks so much for the help
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  #10  
Old 01-30-2011, 03:02 PM
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I use 40 grains of 5744 with a 325 grain Hornady polymer-tipped bullet in my .45-90 for a nice light (and quite accurate) load. The .45-90 is close to the .458 mag in case capacity. You could probably start in that region and work up some good loads for the .458 Lott.

Last edited by Red Pepper; 01-30-2011 at 03:31 PM.
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  #11  
Old 02-01-2011, 08:51 AM
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Reduced Recoil Ammo in 375, 416 Rig, Rem, 458 Win, 458 Lott

I found this company over the holidays that makes quality reduced loads for the 375 H&H, 416 Rigby, Remington, 458 Win and 458 Lott. I ordered some 260 grain Nosler 375 H&H stuff and used it on a deer hunt with my Remington 700 in 375 H&H. Super accurate and worked well on the deer. Open up a whole new avenue for the 375 for me and did not recoil that bad either.



or http://www.longhunterammo.com
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  #12  
Old 09-15-2012, 05:09 PM
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I'm
Trying this with 458 win mags...
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  #13  
Old 09-15-2012, 05:58 PM
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I also use 5744 in 35 Whelen and 416 Remington, and am receiving a 458 Win Mag next week.

The 45-110 Sharps works at reduced pressure, but has almost the same case capacity as the Lott.

These loads published from Accurate Arms show how low you can go with 5744 safely, and no fillers needed.

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