6mm remington
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mgmorden
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You're not going to find ammo in Walmart but at a dedicated gun store or certainly online you can still find ammo. My uncle has always hunted whitetail with a Remington 788 in 6mm Remington.
Its basically a slightly hotter .243 Win.
Its basically a slightly hotter .243 Win.
Winchester came out with the 243. Remington answered with the nearly identical 244. Later renamed 6mm Rem.
The only real ballistic difference between the 2 is that Remington saw it as a varmint round and they twisted their barrels to be effective with lighter varmint bullets. Winchester saw it as a dual-purpose varmint and deer round and twisted their barrels to be effective with both light varmint bullets and heavier deer hunting bullets.
The Winchester version was successful, the Remington version never really caught on. I used to see a few boxes of 244/6mm Rem in stores occasionally, but it isn't nearly as common as it used to be.
Midway shows it on their website, but is out of stock on all of it.
6mm remington ammo - MidwayUSA
The only real ballistic difference between the 2 is that Remington saw it as a varmint round and they twisted their barrels to be effective with lighter varmint bullets. Winchester saw it as a dual-purpose varmint and deer round and twisted their barrels to be effective with both light varmint bullets and heavier deer hunting bullets.
The Winchester version was successful, the Remington version never really caught on. I used to see a few boxes of 244/6mm Rem in stores occasionally, but it isn't nearly as common as it used to be.
Midway shows it on their website, but is out of stock on all of it.
6mm remington ammo - MidwayUSA
Jim Watson
Member
Not by rechambering unless you could set the barrel way back.
The .244 became the 6mm when they increased the twist from 12 to 9 for longer/heavier bullets. Too little, too late. I have heard that the late make .244s were 10 twist but how was the buyer to know?
The .244 became the 6mm when they increased the twist from 12 to 9 for longer/heavier bullets. Too little, too late. I have heard that the late make .244s were 10 twist but how was the buyer to know?
Bcwitt
Member
Would need a new barrel. I doubt you could set it back far enough to recut 243W.
Chuck R.
Member
You're looking at a re-barrel job, relatively easy for someone that knows what they're doing and has the equipment. A couple hundred or more for a smith to do it, plus the cost of a barrel. I'm in the process of having one done now and it's going to be around $600 for the barrel, chambering and fitting.
IF it's branded as a 6mm, then odds are it has the faster twist, as the 6mm "naming" was part of their solution to the failed .244Rem, faster twist, new name, same case dimensions. As Jim W. pointed out, it's doubtful that you'd want to (or could) rechamber as you'd lose a chit load of barrel IF you had enough of a shank or cylinder to do it. A lot of the REM barrel profiles start tapering right after the action, so there's probably not enough meat there to do it. That's something a smith would have to look at and tell you.
It's really is a shame as it's performance is slightly better than the .243. For a long time the 6mm was my favorite woodchuck round and the 2nd centerfire rifle cartridge I ever loaded for. I've still got dies, brass etc.
Bcwitt
Member
It might fire 243s the way it is, but the brass will look kinda funny when it comes out. Lol
mcb
Member
I grew up hunting ground hogs with Dad's 1885 Browning High Wall in 6mm Remington. It was also one of the first center fire rifle cartridge I reloaded when learning. It definitely worked on ground hogs. All three of the big Ammunition manufactures (Win Rem/Fed) still offer 6mm Remington ammunition.
FL-NC
Member
The reality is the 243 won and the 6mm lost. Ammoseek showed several options ranging from $54- $70 for 20 rounds, IMO cost prohibitive to shoot, with the juice being not worth the squeeze to rebarel to 243. If a 243 is what you want, I would just buy a 243.
mcb
Member
Don't forget about 6mm Creedmoor.
It may look more than funny. It would likely separate if it did happen to light off. Saw the results of a case head separation once. Nothing a new stock, magazine cover , follower , etc, some stitches and a lot of gauze and tape couldn’t fix. I believe that was a 308 touched off in a 30/06. It was a long time ago.
Quick search of a few vendors shows that neither ammo, or, brass are , readily available. Everything shows back order, out of stock, or something similar. If you handload , and it comes with a pile of brass, it may be a good deal if cheap enough.
However , now is not a good time to get into unusual calibers. I have a 250 Savage and 257 Roberts and brass is a real issue.
redneck2
Member
Well, that kinda depends. If you had a hankering to make a custom off a Remington action and could get it cheap enough it might be viable.
If you’re into more obscure cartridges it also could be viable
If you’re just looking for something to grab and shoot at a reasonable cost and be able to get ammo at Walmart, not so much
Also, it’s going to be a pretty high performance round, so barrel life on a firearm that old may be a concern. Let’s say the rifle is 50 years old. Even if you only shot three or four boxes a year, the barrel is going to be mostly or totally used up. I wouldn’t consider setting the barrel back simply because of cost versus potential remaining life
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Bcwitt
Member
Push a 7x57 up your 257 sizer. Not sure if you need to even trim.
Offfhand
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It depends on the make and model of rifle, which you don't even know yet, so there is no point in offering suggestions until we have better information. Basically, the 6mm Rem is superb caliber and has been offered in some outstanding rifles. a sample being this Ruger N0.1 which was beautifly restocked by Clayton Nelson.
The 6mm has a decent amount more velocity than 243. It's a hand loaders cartridge though.
My brother has one and swears by it.
I've noticed a slight improvement over 243. But not enough to warrant spending a lot of money on ammo.
If you want a hotrod 6mm. Get a 240Wby or 6x284. If not stay 243 or 6creedmoor.
25-20 WCF
Member
A .243 case will not fully chamber in my 6mm Remington, the case shoulder is too large in diameter for the chamber.
.
troy fairweather
Member
Could get it bored,
mcb
Member
If you bought the 6mm Remington why would you change it at all? You can still get ammo for it fairly easily. My local Cabelas had 6mm Remington on the shelf. Buy enough ammo to get 100-200 pieces of brass and start reloading. The 6mm Remington is more cartridge than the 243 Win in raw ballistics. It really is a nice cartridge.
DM~
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ECVMatt
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The 6mm Remington might be my most favorite round. I used it for several years in TX as my ranch round in a nice Model 700 BDL and can't even begin to count the meat it produced and the varmints is slayed.
It has plenty of power for most things, not much recoil to speak of, is easy to reload, and is very accurate.
Please don't rechamber a 6mm Remington rifle, leave it for those of us who enjoy the caliber.
It has plenty of power for most things, not much recoil to speak of, is easy to reload, and is very accurate.
Please don't rechamber a 6mm Remington rifle, leave it for those of us who enjoy the caliber.
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bannockburn
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Offfhand
That's putting it mildly...
Mr. Clayton Nelson did some truly amazing craftsmanship when he restocked that No.1!
Simply stunning!
That's putting it mildly...
Mr. Clayton Nelson did some truly amazing craftsmanship when he restocked that No.1!
Simply stunning!
MachIVshooter
Member
It's a good cartridge, bit definitely a handloader's round these days.
100-200 FPS velocity advantage over .243 win, depending on bullet weight.
I had one and liked it, but when times were tough, I sold it, as it really didn't do anything my .25-06 didn't do better, and I prefer my 700 BDL C/D to the Ruger M77 that was the 6mm.
100-200 FPS velocity advantage over .243 win, depending on bullet weight.
I had one and liked it, but when times were tough, I sold it, as it really didn't do anything my .25-06 didn't do better, and I prefer my 700 BDL C/D to the Ruger M77 that was the 6mm.
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