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Author Topic: 3000fps in a .458??  (Read 1837 times)

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Offline corbanzo

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3000fps in a .458??
« on: July 24, 2007, 01:24:32 PM »
Supposedly 89 grains of H335 under 300grns of JHP should top 3,000 fps.  When I get them chronied I'll let you know.  I don't expect them to kick quite as hard as the 500 grainers, but that much velocity... we will see what happens.
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Offline quickdtoo

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Re: 3000fps in a .458??
« Reply #1 on: July 24, 2007, 02:04:16 PM »
It's not hard to get an idea of the difference, pretty darn close! After you get out of the hospital, please let us know!! ;D

Tim

http://www.beartoothbullets.com/rescources/calculators/php/recoil.htm?bw=300&bv=3000&cw=89&w=9

http://www.beartoothbullets.com/rescources/calculators/php/recoil.htm?bw=500&bv=2150&cw=75&w=9
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Offline GEMSBUCK

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Re: 3000fps in a .458??
« Reply #2 on: July 25, 2007, 01:12:27 AM »
may  I ask what you plan of shooting them into...not a game animal I hope...how are you going to get the bullet to hold together?
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Offline Smokin Joe

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Re: 3000fps in a .458??
« Reply #3 on: July 25, 2007, 09:15:23 AM »
I doubt that 89 gns of 335 will get you 3000 feet.........assuming that you can pound 89 into a .458 case.
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Offline warf73

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Re: 3000fps in a .458??
« Reply #4 on: July 25, 2007, 10:30:40 PM »
Good luck on your venture (3000fps) I couldn’t get them to hold together at any were near that velocity in my 460WBY.

I’ll look up my data and post it for ya.

If you can do a search for that bullet I posted a write up on my venture with that bullet.



Warf
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Offline crow_feather

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Re: 3000fps in a .458??
« Reply #5 on: July 27, 2007, 11:08:01 AM »
Do they make a 300 grain copper bullet?

Why not just put a board flat on your shoulder and have somebody whack it with a 20 lb. sledge hammer?  Same feeling but cheaper.
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Offline Dee

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Re: 3000fps in a .458??
« Reply #6 on: July 27, 2007, 11:17:23 AM »
Just don't ask me to shoot the thing. :o ;D
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Offline quickdtoo

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Re: 3000fps in a .458??
« Reply #7 on: July 27, 2007, 11:49:40 AM »
Barnes has 250gr and 300gr TSXs that are made for the 45-70, their 300gr XFB would be the best choice I think, they show load data for it in the #3 manual for the 460 Weatherby at over 3000fps with 112gr to 124gr of powder. One other choice would be the 300gr Nosler Partition, but it's also a 45-70 bullet.

FWIW, the 458 Win Mag pushes the 300gr XFB to 2500fps+, the 458 Lott does 2800fps+ with 89gr of H335.

Tim

http://www.barnesbullets.com/products/rifle/tsx-bullet/

http://www.barnesbullets.com/products/rifle/x-bullet/

http://www.nosler.com/index.php?p=11&b=5&s=10&t=45-70
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Offline corbanzo

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Re: 3000fps in a .458??
« Reply #8 on: July 30, 2007, 10:38:30 PM »
Well I didnt get the lott to be a pleasure shooter.  And the 300 grainers are for fun.  I dont know if I ever would use the lott for hunting.  Winmags yes, but 300 grains at or near 3000fps....  I'll see what I can find to splatter besides something live. 

Still havent got out, been a busy weekend, most likely tomorrow.
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Offline warf73

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Re: 3000fps in a .458??
« Reply #9 on: July 30, 2007, 11:25:07 PM »
If you can post your what them 300grs chronied at.

Warf
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Offline corbanzo

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Re: 3000fps in a .458??
« Reply #10 on: August 01, 2007, 02:08:29 PM »
Well, was rather disappointed with the results...

458 lott, 300 grain JHP, 89 grns of H335

2638fps
2657fps
2720fps
2722fps
2626fps
2644fps

Might be able to pull a little more velovity with the ramshot tac, next time I go into town, I'll have to look for some.
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Offline corbanzo

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Re: 3000fps in a .458??
« Reply #11 on: August 01, 2007, 02:13:38 PM »
btw, the felt recoil on these are a lot less than with the 500 grainers, not bad to shoot.
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Offline quickdtoo

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Re: 3000fps in a .458??
« Reply #12 on: August 01, 2007, 02:39:47 PM »
Barnes show H4198 as having the best velocity with the 300gr XFB, 85g max @2849fps in a 26" barrel, that's one of their recommended powders, the other is Rl7 at 88gr max for 2818fps. Hornady shows Ramshot TAC as the best performer with 350gr bullets at 2700fps.

Tim
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Offline gwindrider1

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Re: 3000fps in a .458??
« Reply #13 on: August 29, 2007, 02:50:52 AM »
Should be hell on Rock Chucks ;D ;D ;D
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Offline gitano

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Re: 3000fps in a .458??
« Reply #14 on: August 29, 2007, 05:20:34 AM »
QuickLoad predicts that you can push a 300-grain Nosler Partition to 3093 f/s in front of 107 grains of Win 748 out of a 26" barrel at an estimated chamber pressure of 58,000 PSI. The max CIP pressure listed for the .458 Lott is 62,388 PSI. Muzzle energy is about 6400 ft-lbs.

QL predicts that you can get 3050 f/s from the 26" bbl using 99.3 grains of I3031. Using this powder drops estimated chamber pressure to 54,000 PSI.

QL predicts that I4895 and Accurate 2495 both give MVs over 3000 f/s with pressures just above 54 kPSI out of 26" bbls.

Paul
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Offline corbanzo

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Re: 3000fps in a .458??
« Reply #15 on: August 29, 2007, 09:00:40 AM »
predicts?  I was never a fan of predictions using 100 grains of powder.
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Offline gitano

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Re: 3000fps in a .458??
« Reply #16 on: August 30, 2007, 11:41:34 AM »
Well... I chose that word carefully so not to imply that the output of QuickLoad should be taken as 'gospel', as so many people are wont to do with the data presented in reloading manuals. However, anyone that has ever used the data from a reloading manual has either used data "predicted" from the manual's author's calculations, or they are "predicting" that thier rifle will perform similarly to the rifle used in generating the reloading manual's results.

It has been my experience, that while QL tends just slightly to the conservative, it is head-and-shoulders above any of the reloading manuals I have used over the past 40+years in predicting the results I actually get at the bench. If you choose to disregard QL's "predictions", it's certainly no skin off my nose, and I remain interested in the outcomes of your actual testing.

Paul
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