8mm Mauser to .338 RUM?
- Thread starter steveyb4342
- Start date
Oh wait I just saw the part where you said the bore is too small, sorry it blended in. I had planned on rebarreling it I was just wondering If it would be possible to make the action handle the .338, not the barrel. Im assumeing I can get a barrel that will fit the action that is .338.
Sorry Steve
Sorry Steve
steveyb4342 said:
Steve, it would even not work as a single shot because of the extractor. It is meant to work with a magazine which means the cartridge slips under the extractor as it is brought up from below. Some will snap over the rim when closed on a chambered ctg, if they are worked on. Better ctg would be the .338 win mag if you must have a .338. It is shorter than the ultra.
Steve, they are giveing you short answers for a reason, not because they're upset with you. The conversion you're looking at would be very expensive by the time you were finished with it. There are many reasons for this, I'll give you a few.
The action is much to short, even as a single shot, it would be extremely difficult to get the loaded cartridge into the chamber in the first place, with a scope, even more so. Next I'm not sure if the cartrige case would reliably extract because of its excess length.
The bolt face would have to be opened up to accept the cartridge face and the extractor would have to be recontoured as it would probably break before fitting over the rim of the cartridge and then, if it didn't, probably wouldn't fit into the receiver cut out for it.
It should be OK pressure wise. I don't think "Stevens" makes a suitable action for the ultramag.
In the end, it would just be a lot cheaper, safer, easier to buy a Remington LONG ACTION or a factory rifle already chambered for the round. Another thing, the 338 ultramag isn't that much more effective, other than in our dreams, than the 338 Win Mag which will fit into the 98 action.
In the end, it will cost as much or more to convert the 98 to any 338 cartridge as a new rifle will. If you really have to have a 98, check out the Remington 798, which is a European built 98 for them.
If you really want something different, expensive, and hard to impossible to find cartridges for, there is the 338 Lapua (almost identical performance as the ultramag) or the Laseroni offerings. bearhunter
The action is much to short, even as a single shot, it would be extremely difficult to get the loaded cartridge into the chamber in the first place, with a scope, even more so. Next I'm not sure if the cartrige case would reliably extract because of its excess length.
The bolt face would have to be opened up to accept the cartridge face and the extractor would have to be recontoured as it would probably break before fitting over the rim of the cartridge and then, if it didn't, probably wouldn't fit into the receiver cut out for it.
It should be OK pressure wise. I don't think "Stevens" makes a suitable action for the ultramag.
In the end, it would just be a lot cheaper, safer, easier to buy a Remington LONG ACTION or a factory rifle already chambered for the round. Another thing, the 338 ultramag isn't that much more effective, other than in our dreams, than the 338 Win Mag which will fit into the 98 action.
In the end, it will cost as much or more to convert the 98 to any 338 cartridge as a new rifle will. If you really have to have a 98, check out the Remington 798, which is a European built 98 for them.
If you really want something different, expensive, and hard to impossible to find cartridges for, there is the 338 Lapua (almost identical performance as the ultramag) or the Laseroni offerings. bearhunter
Last edited:
Well thank you all for the responses. Thanks for the lenghty explination bearhunter! I do not have my heart set on a 98 action it just so hapens i ahve an unused one laying around. I do however have my heart set on some type of .338. As the Lapua is very expensive and hard to find that is why I was planning on the .338 RUM. I had asked about this before and I believe I was told the .300 win mag stevens could be converte to a .338 RUM. Oh and by the way someone mentioned saving for a stock, Im building a carbon fiber honeycomb stock.
Thanks Steve
Thanks Steve
MapleSugar
CGN Ultra frequent flyer
- Location
- On the loose from NIMH
Hi Steve!
I'm sorry man, but unless there is something wrong with your barrel or bore I would leave it chambered in 7.92x57mm. There is absolutely nothing wrong with your present caliber.
I think the only thing you'll want to do is get ahold of some ammo that is loaded to European specs like; Prvi Partizan, Wolf Gold, Igman, or FNM. Personally, I’d like to find some of the Prvi Partizan 196 gr. SP for my Yugo M48. Not only is it the approximate bullet weight the iron sights are calibrated for, it is also a capable bullet weight for handling medium and large game well.
When I start reloading for it, there are numerous bullet choices out there to fit the required need. There are lighter and heavier weight bullets available, but again I would stick with the ones in the 195 -200 gr. range. I’m mostly interested in the 195 gr. Spire-Point, Inter-Lock bullet Hornady makes, but Woodleigh makes a 196 gr. RN Speer makes a 200gr. Hot-Cor Spitzer, and Barnes markets a 200 gr. TSX.
They all seem like they would be very effective.
(L to R) Hornady Inter-Lock, Woodleigh RN/SP, Speer Hot-Cor, Barnes TSX
To rebarrel your rifle to another caliber you also will need to fool around with the magazine box, side rails, and possibly the feed ramp. To me it makes more sense to leave your rifle as is. If you hunt with open sights, you can always carry around some loaded 8x57mm stripper clips in your pocket for fast reloads.
Just my two cents…
I'm sorry man, but unless there is something wrong with your barrel or bore I would leave it chambered in 7.92x57mm. There is absolutely nothing wrong with your present caliber.
I think the only thing you'll want to do is get ahold of some ammo that is loaded to European specs like; Prvi Partizan, Wolf Gold, Igman, or FNM. Personally, I’d like to find some of the Prvi Partizan 196 gr. SP for my Yugo M48. Not only is it the approximate bullet weight the iron sights are calibrated for, it is also a capable bullet weight for handling medium and large game well.
When I start reloading for it, there are numerous bullet choices out there to fit the required need. There are lighter and heavier weight bullets available, but again I would stick with the ones in the 195 -200 gr. range. I’m mostly interested in the 195 gr. Spire-Point, Inter-Lock bullet Hornady makes, but Woodleigh makes a 196 gr. RN Speer makes a 200gr. Hot-Cor Spitzer, and Barnes markets a 200 gr. TSX.
They all seem like they would be very effective.
(L to R) Hornady Inter-Lock, Woodleigh RN/SP, Speer Hot-Cor, Barnes TSX
To rebarrel your rifle to another caliber you also will need to fool around with the magazine box, side rails, and possibly the feed ramp. To me it makes more sense to leave your rifle as is. If you hunt with open sights, you can always carry around some loaded 8x57mm stripper clips in your pocket for fast reloads.
Just my two cents…
MapleSugar
CGN Ultra frequent flyer
- Location
- On the loose from NIMH
Damn...sorry Steve, Bearhunter beat me to it. I was busy typing my answer out and finding and editing bullet pictures. Oh well.
I still think you have an exceptional caliber already without having to buy another rifle. that is unless you want a scoped rifle.
Cheers!
I still think you have an exceptional caliber already without having to buy another rifle. that is unless you want a scoped rifle.
Cheers!
MapleSugar
CGN Ultra frequent flyer
- Location
- On the loose from NIMH
I know the feeling. When I was a kid the .30-06 was king to me, but that quickly changed to 7mm Rem Mag after I shot one when I was about 14. Over the years I've had guns chambered in; .303 British, 6.5x55mm, 7.62x39mm, .30-30 Win, 8mm Mauser, .270 Win, and .30-06. Well, I sold or traded most of them off and decided to buy my second left-hand hunting rifle last year. I like the Mauser action of my M48 so I went looking for a LH Winchester Classic in .30-06 hoping to find one sitting NIB on a dusty shelf in the backroom of some gunstore. Well everybody across Canada was sold out. I missed one at Wholesale Sport in Edmonton by days. Needless to say I was pissed I hadn't bought one years ago. But no, I was always fixated on someday buying a 7mm Rem Mag. Anyways, along the way it seemed everybody I talked to either had a LH Winchester Classic in 7mm Rem Mag or in .300 WSM. I turned them all down and ended up buying the last NIB LH Rem 700 in .30-06 I could find.
My tastes in caliber eventually returned to where they started, and I have come to realize you really can't go wrong with a good rifle chambered in any of those old calibers. I hate the rim on the .303 British, but it is still a powerful cartridge. I also like the 7x57mm Mauser and have a special fondness for the 8x57mm Mauser and the .30-06. I hope they are with us for another 100 years.
Cheers!
My tastes in caliber eventually returned to where they started, and I have come to realize you really can't go wrong with a good rifle chambered in any of those old calibers. I hate the rim on the .303 British, but it is still a powerful cartridge. I also like the 7x57mm Mauser and have a special fondness for the 8x57mm Mauser and the .30-06. I hope they are with us for another 100 years.
Cheers!
+1, and the 8mm-06 (and it's AI cousin) is no slouch. Oh, and yes, you can convert a Stevens (really a Savage 110 action) in 300 Win Mag to 338 RUM, but by the time you spend the money to do it, it will cost you more then just buying a rifle in 338 RUM. Really, if you can find a Savage already chambered in 338 RUM (and they did make some, I believe), you will be way better off. FWIW - dan
Last edited:
I wasnt aware savage chambered .338? What would be the difference in .338 RUM, Lapua, Federal etc. What is a 8mm-06? Maplesugar, No worries your response and pictures {pictures help me understand things lol} is very appreciated! I do not particulairly like the current rifle set up and I do want a scoped rifle {I already have a lever action hexgon barrel .30-30 with iron sights } so I planned on completely stripping the rifle and as .338 is my dream cartridge I was hoping to be able to rechamber the rifle half decently easy? I would appreciate any info on the .338 Federal, 8mm-06 and how they compare to the .338 RUM or .338 Lapua.
Thanks Steve
} so I planned on completely stripping the rifle and as .338 is my dream cartridge I was hoping to be able to rechamber the rifle half decently easy? I would appreciate any info on the .338 Federal, 8mm-06 and how they compare to the .338 RUM or .338 Lapua. Thanks Steve
