.458 Win Mag Hornady 500 grain DGS factory load

Quaticman

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I just bought a box of these to try in my Zastava .458 Win Mag. Muzzle velocity on the box says 2,250 fps. If that is the case this represents over 5,600 lb./ft. of muzzle energy and should most definately get the job done. It will be interesting to get actual chrony results out of my 24" barrelled rifle.
 

nksmfamjp

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I just bought a box of these to try in my Zastava .458 Win Mag. Muzzle velocity on the box says 2,250 fps. If that is the case this represents over 5,600 lb./ft. of muzzle energy and should most definately get the job done. It will be interesting to get actual chrony results out of my 24" barrelled rifle.
That will be interesting since those are 458 Lott velocities! Please post chrony results!
 

matt85

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i also look forward to the chronograph results!

-matt
 

Ray B

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2250 fps is 100+ fps higher than I have been able to chronograph with a 500 gr bullet in a M70 win barreled by CP Donnelly. But there are two things to consider:1. I wasn't getting "high" pressure indicators, so I could have gone a little higher trying to get closer to 2250, and 2. I recall Hornady loading ammunition a while back involving some process where they got near magnum velocities from standard cases- they marketed them as Light Magnum or some such name. so they may use that process with the 458 and get those velocities- it just seemed more than I needed to endure.
 

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Ray B
I have used Light Magnum ammo in my pre 64 M70 .308 since the ammo was announced.
Hornady seems to evolved their Light Magnum to "Super Performance" which I now use in my .308. I no longer waste time re loading and save my ammo for hunting.

My sources tell me that the LM line used a powder that allowed the higher velocity without exceeding safe chamber pressures.
 

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Hornady seems to evolved their Light Magnum to "Super Performance" which I now use in my .308.

My sources tell me that the LM line used a powder that allowed the higher velocity without exceeding safe chamber pressures.
After shopping ballistics on several calibers I have come to the same conclusion. I had a Remington 7400 in .30-06 so I avoided it like the plague as it was rumored to bend action bars and eject the charging handle.
The use of Heavy Magnum is interesting in some tables. 2260 on a 500 grain bullet. Lott in a WM case. Fun...
 

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It is fun and sometimes a small change can show major effect,
For instance, preparing for a Cape Buffalo hunt with my 1895 .405 WCF, my 400 grain Woodie hand load had peaked at about 2040 fps. When I switched from brand X mag primers to Federal GM215M (large rifle match magnum primers) and it boosted the velocity to 2076! That was the target velocity for full powder burn and minimal average deviation.
That load proved to be very deadly for the desired application. I now use that primer on all my long compressed powder charges for .405 and .458.
 

Forrest Halley

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It is fun and sometimes a small change can show major effect,
For instance, preparing for a Cape Buffalo hunt with my 1895 .405 WCF, my 400 grain Woodie hand load had peaked at about 2040 fps. When I switched from brand X mag primers to Federal GM215M (large rifle match magnum primers) and it boosted the velocity to 2076! That was the target velocity for full powder burn and minimal average deviation.
That load proved to be very deadly for the desired application. I now use that primer on all my long compressed powder charges for .405 and .458.
What was Brand X? I use CCI for most things, but realize the value of Federal components. It's all ATK now anyway so I wonder the difference.
 

Ray B

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Federal GM215M primers


I use Fed 215s almost exclusively when a hot primer is needed. Do you see a difference in either velocity or uniformity with the Match primer?
 

Nhoro

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I just bought a box of these to try in my Zastava .458 Win Mag. Muzzle velocity on the box says 2,250 fps. If that is the case this represents over 5,600 lb./ft. of muzzle energy and should most definitely get the job done. It will be interesting to get actual chrony results out of my 24" barrelled rifle.
I look forward to seeing your results. I started another thread seeking actual chrony results but it turned into win mag bashing.You are very brave combining win mag and hornady solids, hang tough and ignore the haters ! I have some rounds that are a 450 gr Peregrine at 2350 fps. Pretty sharp recoil, my brother reckons pretty much like his 416 rigby.

Interesting little rabbit trail, my son found a 458 win mag and a 375 h&h in my back yard this week. Both cases were badly corroded and he pulled the bullet from both. 458 win mag powder was loose and -well powdery ! Looked like it would be good to go. 375 was clumped in a solid mass. So it appears that all the haters are wrong- compressed loads can be more stable than uncompressed depending on powder type and that 458 win mag cartridge would have been more reliable than the 375 !
 

Forrest Halley

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I look forward to seeing your results. I started another thread seeking actual chrony results but it turned into win mag bashing.You are very brave combining win mag and hornady solids, hang tough and ignore the haters ! I have some rounds that are a 450 gr Peregrine at 2350 fps. Pretty sharp recoil, my brother reckons pretty much like his 416 rigby.

Interesting little rabbit trail, my son found a 458 win mag and a 375 h&h in my back yard this week. Both cases were badly corroded and he pulled the bullet from both. 458 win mag powder was loose and -well powdery ! Looked like it would be good to go. 375 was clumped in a solid mass. So it appears that all the haters are wrong- compressed loads can be more stable than uncompressed depending on powder type and that 458 win mag cartridge would have been more reliable than the 375 !
Just happened to find two different cartridges that are expensive to shoot in the back yard? This causes me great wonder and concern. Were you able to locate the pack or hunting pants with the hole? I once had some shorts with a hole in the pocket and lost two rounds of .500 S&W in the yard. Thankfully I was able to find them before they aged and provided a test medium for powder clumping...
 

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Also anxious to see chronograph results. 2250 500 gr out of a 458 WM? That's not WM bashing... just trying to get the facts out there.

You might re-read the box because that's what Federal lists for their 400 gr Cape-Shok in the WM. :)

Here's the latest ammo info I see on the Hornady website
500 gr Lott -2300 muz vel
500 gr WM -2140 muz vel

Even 2140 out of a WM is crankin'... wonder if powder is temp sensitive and wonder
the pressure (MAPs)

Lott
Screen Shot 2019-12-12 at 2.48.57 PM.png


WM
Screen Shot 2019-12-12 at 2.47.30 PM.png
 
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Forrest Halley

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Screenshot_20191212-182706.png

I originally found this in the Nikon Spot On app, but this is a screenshot from a PDF of Hornady ammo found at Able ammo. So I don't know if it's a possibility to make that velocity, but it's advertised. I don't think this round is loaded anymore.
 

fourfive8

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I have no idea where that 2260 comes from because it is shown in some advertisements and tables but not from Hornady directly nor from their own website.

Here's a page on an ammo supplier's website. The line just above the ammo box picture shows 2260 and it even includes the mfg item # 8585

Right below it is the manufacturer's (Hornady) specs.- the specs show 2140 and includes the mfg item # 8585

Screen Shot 2019-12-12 at 4.54.22 PM.png
Screen Shot 2019-12-12 at 4.54.54 PM.png


Still haven't seen any direct chronograph results of this particular Hornady 500 gr 458 WM ammo ... a more or less valid, posted result would be something like: complete description of type of chronograph and set up. Then give the number of shots, mean velocity and standard deviation of velocity. Easy to find standard deviation calculators on the net. I would think 5-10 shots would be adequate.

Well, we're waiting....jpeg


Go to Hornady website, link below. Click on 458 WM 500 gr DGS Superformance ammo. When page opens look at specs
https://www.hornady.com/ammunition/rifle/#!/
 

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Nhoro

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Just happened to find two different cartridges that are expensive to shoot in the back yard? This causes me great wonder and concern. Were you able to locate the pack or hunting pants with the hole? I once had some shorts with a hole in the pocket and lost two rounds of .500 S&W in the yard. Thankfully I was able to find them before they aged and provided a test medium for powder clumping...
I bought the house 3 years ago and have found a 375 cartridge when I cleaned out the well and now my son found a 375 and a 458 lying in the back yard. I would guess 20 + years of lying in the yard judging by the corrosion. Some long forgotten owner scattered live rounds around like confetti. I guess it was the good ole days when cartridges were cheap as chips and hillbillies in my (suburban) neighbourhood took potshots across the vlei ! Incidentally a leopard was sited quite regularly in my neighbourhood over the last 5 years so maybe this forgotten hunter was justified in sitting in the yard with a heavy calibre rifle !
 

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