Pics of your .458WM's

The American is crap. The M77 Mark II is more refined. I guide hunters... and have more than four decades. Do you know how many times I have found M70 style safeties in the FIRE position on clients rifles while hiking and stalking game? Hundreds... I have never had an M77 move off full safe accidentally. When you are close to game or waiting on stand or action is imminent, you move the safety to "MID"... trigger locked, bolt free... from that position it is quick and quiet to go to fire. The only people complaining about Ruger's 3-Position safety are people who don't know how to use it... many people only think in terms of "on or off," that is not the whole story, or the refined beauty of the 3-Position Safety.
Too funny.
 
TOBY458,

About your Kimber Remchester, nice wood is its best feature.
Otherwise:
Pipe action for economy and ease of production.
Add-on, washer-type, primary recoil lug cleverly hidden by a non-threaded projection of the front of receiver.
Worst of all is the chambering.

I might tolerate it, for the nice wood, if it was chambered for the more powerful SAAMI .458 WIN MAG.
Better make sure it has a SAAMI .458 WIN MAG reamer run into it to extend the throat, to improve it.

Or do you want to just keep it around to poke fun at ?
That's what I do with my unimproved Ruger RSM .458 CENSORED.

View attachment 751372
@Riflecrank I did a little testing with the Kimber this afternoon. I happened to have a 458 Lott loaded out to 3.860 COAL with a 450gr TSX laying on my bench. It will easily chamber in the Kimber. Of course the magazine is way too short to cycle it, but it could be easily loaded and fired. So what does that say about the chamber on this rifle?
 
@Riflecrank I did a little testing with the Kimber this afternoon. I happened to have a 458 Lott loaded out to 3.860 COAL with a 450gr TSX laying on my bench. It will easily chamber in the Kimber. Of course the magazine is way too short to cycle it, but it could be easily loaded and fired. So what does that say about the chamber on this rifle?
It's alotta chamber.
 
@Riflecrank I did a little testing with the Kimber this afternoon. I happened to have a 458 Lott loaded out to 3.860 COAL with a 450gr TSX laying on my bench. It will easily chamber in the Kimber. Of course the magazine is way too short to cycle it, but it could be easily loaded and fired. So what does that say about the chamber on this rifle?
To me it says that you need to lengthen the magazine to take those long cases :cool:
The only issue with the Lott is that the design was stolen and has the wrong name on the cartridge, aside from that it’s fine
Gumpy
 
To me it says that you need to lengthen the magazine to take those long cases :cool:
The only issue with the Lott is that the design was stolen and has the wrong name on the cartridge, aside from that it’s fine
Gumpy
No way to do that on the Kimber. She’s maxed out at 3.6”. Which is all the power I need anyway.
 
@Riflecrank I did a little testing with the Kimber this afternoon. I happened to have a 458 Lott loaded out to 3.860 COAL with a 450gr TSX laying on my bench. It will easily chamber in the Kimber. Of course the magazine is way too short to cycle it, but it could be easily loaded and fired. So what does that say about the chamber on this rifle?
TOBY458,
That means your .458 CENSORED/2.8" Kimber chamber has a non-SAAMI chamber.
The longest load possible using 2.8" brass with that bullet, seated on the fourth/last cannelure is ~ 3.980. With 2.5" brass it is ~3.680" COL (Cartridge Overall Length = COL, not COAL),
as previously illustrated here:

a009-jpg.750880


Anyway, either a 500-gr or 450-grain TSX would be maxed out in a SAAMI .458 WIN MAG throat
with a COL of 3.780" using 2.5" brass.
And a SAAMI .458 CENSORED throat would allow a COL of less than that, 0.1585" less,
due to the shortness of throat, even though using 0.300" longer brass case.
3.622" ought to be bumping the lands with either 450-gr or 500-gr TSX,
in the SAAMI .458 CENSORED/2.8"

Variance from this must be attributed to slop of reamer wobble or throat erosion,
or a pristine chamber with a non-SAAMI reamer for the .458 CENSORED/2.8".

The old original CIP throat for the .458 CENSORED was same as on a .458 WIN MAG.
So that kind of chamber would allow for a maximum COL of 4.080" with the bullet used in your dummy.

CIP eventually changed their .458 CENSORED homologation to match that of SAAMI.
SAAMI and CIP have always been the same on the chamber specs for the .458 WIN MAG.
Unchanged since 1956 release to the gun trade.

CIP differs from SAAMI currently in allowing the .458 WIN MAG/2.5" the same higher MAP as the .458 CENSORED/2.8", with which I heartily agree.

If SAAMI allowed 62,500 psi for the .458 WIN MAG/2.5" (same as SAAMI allows for the .458 CENSORED/2.8") instead of only 60,000 psi,
there would be an MV difference of only 40 or 50 fps between the .458 WIN MAG with COL of 3.340"
and the .458 CENSORED with COL of 3.600",
in same 24" barrels.
 
Last edited:
TOBY458,
That means your .458 CENSORED/2.8" Kimber chamber has a non-SAAMI chamber.
The longest load possible using 2.8" brass with that bullet, seated on the fourth/last cannelure is ~ 3.980. With 2.5" brass it is ~3.680" COL (Cartridge Overall Length = COL, not COAL),
as previously illustrated here:

a009-jpg.750880


Anyway, either a 500-gr or 450-grain TSX would be maxed out in a SAAMI .458 WIN MAG throat
with a COL of 3.780" using 2.5" brass.
And a SAAMI .458 CENSORED throat would allow a COL of less than that, 0.1585" less,
due to the shortness of throat, even though using 0.300" longer brass case.
3.622" ought to be bumping the lands with either 450-gr or 500-gr TSX,
in the SAAMI .458 CENSORED/2.8"

Variance from this must be attributed to slop of reamer wobble or throat erosion,
or a pristine chamber with a non-SAAMI reamer for the .458 CENSORED/2.8".

The old original CIP throat for the .458 CENSORED was same as on a .458 WIN MAG.
So that kind of chamber would allow for a maximum COL of 4.080" with the bullet used in your dummy.

CIP eventually changed their .458 CENSORED homologation to match that of SAAMI.
SAAMI and CIP have always been the same on the chamber specs for the .458 WIN MAG.
Unchanged since 1956 release to the gun trade.

CIP differs from SAAMI currently in allowing the .458 WIN MAG/2.5" the same higher MAP as the .458 CENSORED/2.8", with which I heartily agree.

If SAAMI allowed 62,500 psi for the .458 WIN MAG/2.5" (same as SAAMI allows for the .458 CENSORED/2.8") instead of only 60,000 psi,
there would be an MV difference of only 40 or 50 fps between the .458 WIN MAG with COL of 3.340"
and the .458 CENSORED with COL of 3.600",
in same 24" barrels.
I’ll do some more experimenting and see how long she’ll go. Of course, this all means nothing to me if the loads won’t fit the magazine and feed through the action. The elephant I shot with the 458 Win Mag didn’t seem to complain about a 450gr at 2250 fps. So I don’t think I need more power.
 
Very cool U.S. Enfield 1917 .458 WIN MAG Full Stock.
Here is No. 14 of my .458 WIN MAGs, arrived a few months ago,
No. 6 Pac-Nor Sporter contour of 26" length and 1:10" twist,
on a Portuguese Winchester M70 donor rifle:

zz012.JPG


I doubt this will become a regular production item, but above box label is how I would imagine it. Maybe also change it to "EXTREME BARREL" instead of "EXTREME WEATHER" for the .458 WIN MAG.

zz001.JPG


z012.JPG
z002.JPG

z005.JPG
z001.JPG


Pac-Nor said fluting was not practical and they said muzzle end of barrel needed to be swamped up to allow .750"x24tpi threading.

IMG_E1623.JPG

IMG_E1624.JPG


Send Pac-Nor a barreled action and wait 6 months.

zzz019.jpg


zz004.JPG


This rifle was inspired by 50Gunner/gunner500/Ser Jerry's "Baby."
He switched out the magazine box, bolt-stop and ejector to make his rifle a 26"-barreled M70 .458 WIN MAG with 3.6" COL magazine function.

I have left my new baby (Muninn is her name) with the 3.4" COL magazine function, though I could harvest parts from a Portuguese .375 H&H to do what Ser Jerry did.
No need, Muninn will single load and eject unfired COL of 3.59" as is.
She is two rifles in one.
A long-COL single-shot and a short-COL magazine repeater.
Pac-Nor thread protector on the bulbous 26" muzzle.

z009.JPG


Now I await the .510 WIN MAG, the cowbird egg in the WIN MAG nest.
 
Last edited:
Very cool U.S. Enfield 1917 .458 WIN MAG Full Stock.
Here is No. 14 of my .458 WIN MAGs, arrived a few months ago,
No. 6 Pac-Nor Sporter contour of 26" length and 1:10" twist,
on a Portuguese Winchester M70 donor rifle:

View attachment 775985

I doubt this will become a regular production item, but above box label is how I would imagine it. Maybe also change it to "EXTREME BARREL" instead of "EXTREME WEATHER" for the .458 WIN MAG.

View attachment 775982

View attachment 775983View attachment 775984
View attachment 775986View attachment 775987

Pac-Nor said fluting was not practical and they said muzzle end of barrel needed to be swamped up to allow .750"x24tpi threading.

View attachment 775990
View attachment 775992

Send Pac-Nor a barreled action and wait 6 months.

View attachment 775993

View attachment 775988

This rifle was inspired by 50Gunner/gunner500/Ser Jerry's "Baby."
He switched out the magazine box, bolt-stop and ejector to make his rifle a 26"-barreled M70 .458 WIN MAG with 3.6" COL magazine function.

I have left my new baby (Muninn is her name) with the 3.4" COL magazine function, though I could harvest parts from a Portuguese .375 H&H to do what Ser Jerry did.
No need, Muninn will single load and eject unfired COL of 3.59" as is.
She is two rifles in one.
A long-COL single-shot and a short-COL magazine repeater.
Pac-Nor thread protector on the bulbous 26" muzzle.

View attachment 776000

Now I await the .510 WIN MAG, the cowbird egg in the WIN MAG nest.
Were you able to use the stock 300 WM follower and mag box? Any work done on the feed rails or ramp? Or was the action from a 458 WM Safari Express?
 
Last edited:
Polish the ramp and rails and feed job is complete with the .300 WIN MAG M70 action from Portugal rebarreled to .458 WIN MAG.
 
I am a big .458WM fan and though I think I have what I want and need, I'd love to see pics of your 458's. I am especially interested in shorter and lighter builds. Any thoughts or reflections on your guns are also appreciated. I have posted one of mine that I bought here, but I don't have a current pic. I took the RDS off and am looking for a good full time rear ghost ring now, since the gunsmith I took it to messed up every aspect he possibly could, including the rear peep backup.
What Action & what Stock do you have?
 
I currently have a 458 Win being built at the moment. For the time being I will post my sons 458. They are both similar rifles, built off Zastava M70 actions in walnut stocks. At the time of this photo, my son's rifle was wearing an Aimpoint H2 red dot, but its now got a 1-10 LPVO with a German no 4 reticle and an illuminated dot.

IMG-3766.jpg
 

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Lbarr might be a scammer

it appears he sold the same brass to me and another member
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Between Blak Rock and Pocahontas, I did not want to say that on the forum. That's a nice Cat!
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just making sure my message went threw
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I'll take the Vortex scope cover you have listed in the Pay it Forward thread.

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