458 Win Mag. Short Barrel Chrono Results...

TOBY458

AH legend
Joined
Jan 23, 2014
Messages
2,929
Reaction score
6,388
Location
Madison Georgia, USA
Media
191
Articles
2
Hunting reports
Africa
3
I recently cut the barrel down on my Winchester 70 458 WM to 21 1/4". I was looking to lighten up the rifle a bit, and to gain a little handiness in the process. I have always been curious as to how much velocity one could get with a short-ish barrel on a 458 Win Mag. I have also recently been intrigued by the Cutting Edge Bullets. The following results show what I have been able to achieve so far.

258 gr CEB Socom 2800 fps.
370 gr CEB LG Raptor 2380 fps.
420 gr CEB Raptor/450gr Solid 2200 fps.

These results are only slightly behind what you can achieve with a 24" barrel. By the accounts of people who have used these bullets, there is nothing you can't hunt with this line up. According to very reliable sources, the 450gr CEB solids will shoot through the biggest bull Elephant from most any angle. And the 258gr Socom and 370gr Raptor will fill in for smaller calibers with ease, out to most sane shooting ranges. So what more could you ask for? A short, handy rifle, with all the power and versatility needed for most hunting conditions.
 

TOBY458

AH legend
Joined
Jan 23, 2014
Messages
2,929
Reaction score
6,388
Location
Madison Georgia, USA
Media
191
Articles
2
Hunting reports
Africa
3
Winchester 70 458 Win Mag in McMillan stock, 21 1/4" barrel and NEGC front sight, with XS rear Ghost Ring sight.

20210908_174800.jpg
 
Last edited by a moderator:

TOBY458

AH legend
Joined
Jan 23, 2014
Messages
2,929
Reaction score
6,388
Location
Madison Georgia, USA
Media
191
Articles
2
Hunting reports
Africa
3
Interesting that a .458 B&M with an 18" barrel gets almost the same stats with 258 gr. @ 2,850fps and 420/450 @ 2,250/2200 fps.
From what I can tell, the B&M advantage is getting similar ballistics to the 458 Win Mag with 4" less barrel length. I'm satisfied with 21 1/4", but I can see why someone would prefer an 18" barrel!
 

SAFARIKIDD

AH enthusiast
Joined
Jul 17, 2020
Messages
362
Reaction score
511
Location
Louisiana
Media
113
Articles
1
Hunted
TANZANIA..ZIM..BOTSWANA....NAMBIA
Nice 458!
I had both the 458 & 500 B&M's done up special for me by Mike(swell guy)
As far a velocity loss seems to really stir some folks up ...I have a 16" 458 listed for sale now...I dont mind some loss in trade for handiness..
I like the 21" length alot and agree with your decision-looks nice too!..your test results doesnt suprise me at all...Simple-the bigger the bore the less loss...my 16" 500 Jeff and 16" 600 both were VERY efficient with very little loss!
 
Last edited:

Wyatt Smith

AH elite
Joined
May 9, 2019
Messages
1,915
Reaction score
3,362
Location
Pike county
Media
43
I’m going to have my 375 cut down and install a banded Necg front sight. I just have to decide on the barrel length and the type of rear sight. I already have the McMillan express.
Sorry for the de-rail.
 

Royal27

AH ambassador
Joined
May 27, 2012
Messages
9,549
Reaction score
13,796
Media
109
Articles
5
Hunting reports
Africa
6
Member of
DSC, NRA, SCI
Hunted
USA - TX, CO, GA, ID. Africa - Zimbabwe, Zambia, and South Africa (Limpopo and EC)
That's pretty impressive Toby!
 

TOBY458

AH legend
Joined
Jan 23, 2014
Messages
2,929
Reaction score
6,388
Location
Madison Georgia, USA
Media
191
Articles
2
Hunting reports
Africa
3
Nice 458!
I had both the 458 & 500 B&M's done up special for me by Mike(swell guy)
As far a velocity loss seems to really stir some folks up ...I have a 16" 458 listed for sale now...I dont mind some loss in trade for handiness..
I like the 21" length alot and agree with your decision-looks nice too!..your test results doesnt suprise me at all...Simple-the bigger the bore the less loss...my 16" 500 Jeff and 16" 600 both were VERY efficient with very little loss!
I bet that 16" 600 will light up your life! Haha! It's very interesting how much better a rifle can feel by simply taking a few inches off the barrel. But after all, the end of the barrel is where all the leverage is coming from that makes a rifle feel front heavy.
 

michael458

AH enthusiast
Joined
Nov 3, 2010
Messages
302
Reaction score
1,017
Location
South Carolina
Media
177
I am thinking of having my 375 cut down to 21” or 22”
Wyatt........ Its still going to be 3 7 5...... its not going to get bigger...... and its not going to get a damn bit better either.........

I’m going to have my 375 cut down and install a banded Necg front sight.
No No No No............ Wyatt, take that money you are getting ready to FLUSH, and buy a 458! Quit flushing money down the toilet on such a thing........... Sell it, invest in more caliber....
 

michael458

AH enthusiast
Joined
Nov 3, 2010
Messages
302
Reaction score
1,017
Location
South Carolina
Media
177
But @michael458 its just my rabbit rifle. :cool:
I do have plans for a 458 someday
Oh My Wyatt, it seems I have made horrible assumptions once again when that caliber is mentioned, my sincere apologies young man, that thing should make a fine rabbit slayer, but be sure and use proper bullet tech, and super premium bullets. In the case of those wraskly Wabbits, you may want to still get rid of that thing, I hear 22LR has proven itself over the years on Wabbits..... best not to take too many chances.........

:LOL:
 

michael458

AH enthusiast
Joined
Nov 3, 2010
Messages
302
Reaction score
1,017
Location
South Carolina
Media
177
And that way I can leave that pretty new Kimber 458 in the safe! Lol!
We could start chopping that barrel off too?.........................Might could get to 20 inches on that one..........LOL
 

Forum statistics

Threads
39,902
Messages
777,510
Members
72,764
Latest member
lulu
 

 

 

Latest posts

Latest profile posts

gprippers wrote on Tucketed's profile.
Hello, saw that you want the Jeffries brass. So you an either send a USPS money order or paypal i guess, which ever works for you is fine with me at this point. If you want to us Paypal use [redacted] friends and family and dont mention gun stuff at all or they will go bananas! LOL!

Let me know what you want to do.
Thanks,
Rob
Cowboy wrote on MBIZI SAFARIS's profile.
Good afternoon, please send me a list of pricing for 2022.
NTH wrote on JimT's profile.
Hey Jim, I read that you’re from Dequincey and just returned from Africa. I’m from Lake Charles and went there in April. What outfitter did you use and would you share your experience and pics? I won our trip to Kuche through DU.
gprippers wrote on SAFARIKIDD's profile.
Hello! Nice rifle! I have IDENTICAL rifle in 375 H&H so i was wondering what gunsmith did the work on it? Appreciate it and if you decide there is anything you are willing to take in partial trade, let me know. I have quite a few pistols, long guns and sxs & o/u shotguns as well.

Let me know if you are looking for anything in particular.

Thanks,
Rob
Bearhunter46 wrote on Philip Glass's profile.
Philip, do you still have the 416 for sale?
 
Top