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#479371 - 04/27/05 06:57 PM 458 Win reduced loads
rembo Offline
Campfire Ranger

Registered: 11/08/00
Posts: 2215
Loc: Alberta, Canada
I have made a deal on a Ruger #1 in 458 Win Mag...should arrive in a few days.

I can't seem to locate any data for reduced loads duplicating a 45-70. I think I may need something like this to get started.

Anyone have a link to some data?...or some data to share?
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"after the bullet leaves the barrel it doesn't care what headstamp was on the case"
"The 221 Fireball is what the Hornet could have been had it stayed in school"

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CI16728
#479372 - 04/28/05 04:33 AM Re: 458 Win reduced loads
BullShooter Online   content
Campfire Regular

Registered: 09/24/04
Posts: 1341
Loc: The U.P.'s U.P.
rembo-
In American Hunter of Feb 1985, Finn Aagaard listed two loads as being .45-70 equivalents, one using a 300 gr bullet and the other a 400 gr bullet.

In Handloader May-June 1978, Clay Harvey has an article titled "De-Magnumizing the .458 Winchester Magnum" and lists several loads with 300, 350, 400, and 405 gr bullet.

Several light loads in "Reader By-Lines" are listed in Handloader 81 (Sept-Oct 1979), page 10.

Ken Water's Pet Loads article on the .458 in [Handloader 92 (July-Aug 1981) lists several reduced loads with 300 and 400 gr bullets.

The starting loads listed in the Lyman reloading manuals are about the equivalent of .45-70 loads. I think the Speer manual also lists reduced .458 loads.

Ed Matunas wrote an article in the 1990 Handloader's Digest titled "Handloading the Really Big Bores for Deer", and listed some .45-70 equivalent loads. Ray Ordorica did the same in the 1994 Handloader's Digest titled "The 458 Revisited".

Just some places to start looking.
--Bob

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#479373 - 04/28/05 07:42 AM Re: 458 Win reduced loads
bearhuntr Offline
Campfire Ranger

Registered: 02/02/02
Posts: 2393
Loc: at Grandma's house...
rembo,

Many standard manuals offer reduced loads for the winny. The Hornady and Speer offerings show a few...

best,
bhtr
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#479374 - 04/28/05 08:03 AM Re: 458 Win reduced loads
GreatWhiteNorth Offline
Campfire Regular

Registered: 02/17/04
Posts: 568
Loc: Minnesota
rembo,
Been there done that! Be careful with your powder selection as hangfires can be rather unpleasant. I would suggest the 350 Hornady Interlock for hunting. If you are hunting milk jugs filled with water I would use the 300 gr Hollow point. IMR 4198 might be a good place to start for powders. I would start at 50 grs and work up with the 300 grain bullet for a light recoil load. The Sierra Anniversary Edition lists the load of choice as 70.3 grs of IMR 3031 and the 300 gr HP. This would give you 2400 fps and 3836 ft lbs. of woodchuck busting power. Enjoy!


Edited by GreatWhiteNorth (04/28/05 01:03 PM)
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#479375 - 05/01/05 07:34 AM Re: 458 Win reduced loads
Arizona Offline
Member

Registered: 02/05/04
Posts: 64
Loc: Mtns of the desert SW
Rembo,

I have a #1 and an M77 both in .458 Win Mag and they both shoot nicely with the following load that duplicates heavy 45-70 loads...

400gr/405gr JFP over 67.0gr IMR-4064/CCI200/W-W cases

This loading gives me 1915fps in my guns and shoots 1" at 50 yards easily. It's a very pleasant load and a fun plinker yet packs plenty of wallop for nearly all North American big game as-is.

I've found the .458 Win Mag to be very easy to load for and alot of fun.
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#479376 - 05/02/05 07:39 AM Re: 458 Win reduced loads
458 Lott Offline
Campfire 'Bwana

Registered: 01/29/01
Posts: 13761
Loc: Conundrum, Alaska
Just stick with 350 gr bullets, even top level loads aren't that bad, and they'll take any NA animals. They are night and day different then shooting 500's. Reloader 7 is a great powder for the 350 grainers.
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I'm not a gunwriter, that's 458 win. I'm just a gun-nut in Alaska.

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#479377 - 05/27/05 05:34 PM Re: 458 Win reduced loads
Dov Offline
New Member

Registered: 05/27/05
Posts: 1
What 350 grain bullets are recommended for NA game? Is there one that will work fine on Deer and Moose?

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#479378 - 05/27/05 06:55 PM Re: 458 Win reduced loads
Charlie_Sisk Offline
Campfire Ranger

Registered: 02/21/02
Posts: 2041
Loc: Dayton, Texas
rembo
Have a look here...
http://www.hodgdon.com/data/rifle/458winma.php

I copied this from their site , used it several times myself with no problems. DO NOT use that data with anything other than H4895, no telling what might happen.

Hodgdon Powder Company has developed the following reduced loads for youth and beginning shooters for use on deer and similarly sized game animals. The bullets chosen were originally designed for single shot pistols and their lower velocities. These loads have been developed to closely approximate those pistol velocities in rifles, and therefore, similar performance on game animals. This provides our young and beginning shooters with loads effective to 200 yards with minimal recoil.

For all cartridges we chose H4895 because it is the slowest burning propellant that ignites uniformly at reduced charges. For years, H4895 has been the top choice by cast bullet shooters. For this type shooting, loads are reduced even more than the hunting loads listed herein. To create loads of this type for target and plinking, we recommend our 60% rule with H4895. By taking the maximum charges listed in our Annual Manual with any given cartridge and multiplying it by 60%, the shooter can create a 1500 to 2100 fps load, depending on the bullet weight shown. This works only where H4895 is listed. Do not use H4895 in a cartridge where it has not been shown.

Call Hodgdon Powder Company if additional information is needed. Loads may be adjusted up or down to achieve best accuracy. Do not reduce by more than an additional 10%.

Charlie
_________________________
The data and opinions contained in these posts are the results of experiences with my equipment, componentry, and testing methodology ONLY. As your equipment, componentry, and methodology is different, NO CONCLUSIONS SHOULD BE DRAWN FROM ANY DATA PRESENTED, nor should any data presented form the basis for any load development. DO NOT, UNDER ANY CIRCUMSTANCES, ATTEMPT TO REPLICATE THESE RESULTS, as doing so could be extremely dangerous.

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#479379 - 06/03/05 04:29 PM Re: 458 Win reduced loads
Chuckbuster Offline
Campfire Regular

Registered: 03/06/03
Posts: 424
Loc: Southern Michigan
I used to have a No1 458.
Standard primer, Win Brass, 350 Hornady RN and 72gr RL 7
Fun and Accurate
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I have "CDO". It is just like "OCD" except the letters are in alphabetical order LIKE THEY SHOULD BE!

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#479380 - 06/15/05 03:37 AM Re: 458 Win reduced loads
Hubert Offline
Campfire Outfitter

Registered: 08/10/03
Posts: 7963
Loc: PA
Simply use the 45/70 load chart's. in the 458..
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