I also have a 450 Rigby built on a Vektor action. Handloading with a lifetime supply of brass is the answer for these less popular cartridges!For my 450 Rigby it appears Norma is the last manufacturer.
I’d suggest you still order that Winchester if you want one. You might get lucky and get one sooner rather than later, but I wouldn’t hold your breath. Winchester had a lot of demand for 375’s and it took them a while to make them, well past their projected production date.I called CZ USA today to see if I could get a 458WM caliber rifle.
What I was told was CZ stopped making calibers over 300 caliber.
I then called Winchester. The reps response: If, I order now I might receive my custom ordered rifle in 6months, his estimated delivery time by early June 2025. Which is unacceptable since I am leaving for a 40 +/- day trip to RSA on April 28th, 2025.
Winchester rep did have a bright side, I might be able to get a 416 variant by the first week of April 2025. Sarcasm: some bright side! Very little time to practice and play with before departure.
However, both the CZ and Winchester reps did recommend I look on gun broker or Gun Deals for their respective firearms.
BTW and Warning from CZ: "CZ DOES NOT SELL "BLEMISH " FIREARMS! ANY(ONE/ SITE) SELLING or Listing Such, IS A SCAMMER!".
I am WTB/WTT a 458WM should anyone have a 458WM they are wanting to sell or trade you can PM/DM me.
I will be in the US in the February of 2025. If you like, I'd be more than happy to loan you my .375 Holland & Holland Magnum Remington Model 700 Kevlar Stock Custom (with M16 extractor fitted for more reliable cartridge extraction). Absolutely free of cost. I'm sure you'll take care of and return it to me in one piece.
According to his profile, Ridge Runner already has a 375 and has apparently already taken buffalo and hippo with it.
Several for sale on Guns International. Really nice looking custom shop model
I am WTB/WTT a 458WM should anyone have a 458WM they are wanting to sell or trade you can PM/DM me.
What is your price range?
News Flash. AH is a niche community. The majority of the hunting world shoot .30 caliber and below. And the further you go up from .30 cal, the numbers drop off significantly.
Add to that the number of hunters that have an actual NEED for something above .375...now it's really getting slim.
Do I also need to point out that we (as hunting sportsmen) are dwindling? By both total numbers and percentage, we are not gaining ground.
For a long time now companies have been making adjustments to what they see the future of the market holds. They are investing very little money in the development of cartridges that would be DG legal. Outside of wildcats, I'm guessing the last one was the 375RUGER and 416RUGER in 2006...almost 20 years ago. There is a message here.
The writing is on the wall and it's been there for some time now. So what does that mean to my fellow AH members? You should order that Win M70 in 458WM and wait the six months. Make a bid on that Heym 404J on GI. Work some OT and save up for that double rifle. Whatever it is you are looking for, find a way to make it so or you stand to loose the opportunity.
Unfortunately most companies seem to be eliminating their safari chamberings - it's very disappointing situation - in particular the CZ-550
Does it have to be a custom order? I see Model 70 Safari Expresses restocking here every few months, including in 458 WM. Buying second hand would be the best bet to find a rifle in your cartridge of choice on a short timeframe.
The Ruger M77 rifles in 416 Ruger are also showing in stock if you would consider that cartridge.
I have cz 458 win mag available if you are interested PM me.
Krish