quote:

Originally posted by Fury01:
I can't hardly wait to see that new long rifle sir!!

quote:

Originally posted by Tanoose:
the hornady load book says you can get 2200 fps with there 500 grain bullets out of a 24" barrel can that velocity actually be reached. i ask because this seems so close to the lott at 2300 fps unless the lott actually gets more. i already have a 416 ruger but have always wanted a 458 and wondering which way to go.

quote:

unless sumbuddy who know ANYTHING RELATED to the .458 WIN can post before I do.

quote:

Originally posted by RIP:
Wow!
Here is an expensive collector cartridge!
Oliver F. Winchester got his name on it, and started work on the .458 Winchester Magnum almost a century earlier than I had previously thought.
It is a one-piece, drawn brass, centerfire rifle cartridge that was being produced by the end of 1867.
It had a unique centerfire primer, O. F. Winchester patented, US #60814 dated January 1, 1867:

quote:

Originally posted by JFE:
I have a LH CZ550 that has been converted to 458 Win
Good man!
and have a few questions. They are quite relevant to this thread.

The rifle has gone back for some feed work. This step was overlooked during the conversion process as I had the smith do quite a few different jobs at the same time.

The smith came back to say that it would feed better if the magazine was blocked. Keen readers of this thread will note that the CZ mag box is 3.8" long, so shorter factory length shells would slop around in the long magazine box. The smith suggested limiting the box to the length of the follower.

My CZ .458 WIN follower is 3.541" long, and it does need some play at either end to function smoothly.

At this stage I told him to leave the box at the stock length. I will rarely load shells that long, but why limit yourself is my thinking. Maybe I should get a second mag box and run one at the stock length and another blocked as the smith suggested.

Not a bad idea, if you must.

For those of you that have an un-blocked 3.8" mag box in a CZ 458 Win, how do the shorter SAAMI length 458's feed in the longer mag box, particularly when under recoil and field conditions?

I have had no problems with it. I always push the rounds forward in the box so the meplats rest against the front of the box.

The other relates to the mag box itself. As my rifle was originally chambered for 375 H&H (as all LH CZ 550's were) it has the 'ribbed' mag box. Someone mentioned that the ribbed boxes were used in some other calibres as well,

True, I have seen .416 Rigby and even .505 Gibbs rifles come from the factory with the .375 H&H ribbed box, or the non-ribbed box.
Don't know why that would be unless there is more than one way at the factory to make them feed.
All of my several .458 WIN and Lott rifles have come with the smooth-sided "458 WM" marked box.



Ribbed-375H&H on right and smooth-458WM on the left below:



however my understanding is that 458's were fitted with smooth mag boxes. Does it make any difference which box is used for the 458 ?

I think so. The .458 WIN works better in the non-ribbed box, most of the time.


Thanks

quote:

Originally posted by sambarman338:
Sounds like a new argument for the 458WM Long COL, JFE

Alternatively, I wonder if a detachable block could be added, which might include a couple of studs located in holes drilled in the magazine box, readily removable if longer rounds were to be used?

I'll hold off on my suggested answer to the riddle until RIP or someone else indicates they've seen it.

quote:

Originally posted by RIP:
Paul,
Lets have it, please, why was O. F. Winchester so stuck on the lever action?

Rip ...

quote:

Originally posted by JFE:
I have a LH CZ550 that has been converted to 458 Win and have a few questions. They are quite relevant to this thread.

The rifle has gone back for some feed work. This step was overlooked during the conversion process as I had the smith do quite a few different jobs at the same time.

The smith came back to say that it would feed better if the magazine was blocked. Keen readers of this thread will note that the CZ mag box is 3.8" long, so shorter factory length shells would slop around in the long magazine box. The smith suggested limiting the box to the length of the follower. At this stage I told him to leave the box at the stock length. I will rarely load shells that long, but why limit yourself is my thinking. Maybe I should get a second mag box and run one at the stock length and another blocked as the smith suggested.

For those of you that have an un-blocked 3.8" mag box in a CZ 458 Win, how do the shorter SAAMI length 458's feed in the longer mag box, particularly when under recoil and field conditions?"
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JFE: I can't speak to SAAMI length under recoil and field conditions, but I did load my CZ550, originally chambered for the .458 Win Mag, to 3.44" using the 350 TSX for both a moose and a bear hunt. The moose hunt was for five days (actual hunting) in the northern part of our province. The terrain was very mixed: through tight alders at times, in open clear cuts with brush, deep ruts made by heavy logging equipment, steep ridges and streams to cross. Never did the rifle or load give any problems. There were five in the magazine and one in the chamber. There was no movement or ratteling of the cartridges as far as I could tell. All-up, the rifle weighed 11.25 lbs with a 3-9 x 40mm scope, 6 cartridges and sling. I never noticed it's weight or length (25" barrel and true magnum action) except a few times working through alders. I didn't get a chance on moose as we were a week too late. My partner couldn't get away from work before that. I shot a bull in that same area a couple of years earlier using my .340 WBY with a 26" barrel, but that was lighter by about 2.5 lbs.

With the CZ550, I shot a black bear over my bait in the Haliburton Highlands (Crown Land) the fall following my moose hunt with that rifle. I changed the load from RL-7 to H4198 behind the 350 TSX as it gave better consistency in MV under variable temps. RL-7 was 2700 fps and H4198 was 2750 fps. I pulled the trigger on a medium bear as it faced me at 98 yards. Immediately I ejected the empty and slammed home another. There was never a hitch or hiccup. It wasn't needed though as the bear was dead on the first shot.

Bob
www.bigbores.ca

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"The other relates to the mag box itself. As my rifle was originally chambered for 375 H&H (as all LH CZ 550's were) it has the 'ribbed' mag box. Someone mentioned that the ribbed boxes were used in some other calibres as well, however my understanding is that 458's were fitted with smooth mag boxes. Does it make any difference which box is used for the 458 ?

Thanks

quote:

Originally posted by JFE:
Apart from different mag boxes, are the CZ550 375 and 458 followers different? I'm thinking the 458 followers might be slightly wider to better fit the smooth sided boxes.