Just some ..I wonder why's
With the new super 22 cals ..such as 22 Nosler 224 Valkyrie. 223 Ai
Why wouldn't you try the same treatment to a 22-250 ?
Such as a faster twist barrel and bullets in the 75~90 gr range?
Is there a design or function issue?
Just curious? Or is this already a "thing" and I am just clueless ????

I've done it. When I shot out my 1:14 barrel, I bought a 1:8 barrel. This was 7 years ago. I run 75 gr A-Max in it, at 3200 fps MV.

Why rifle manufacturers continue to keep the 1:14 twist is beyond me. 55 gr is the longest it will stabilize.

Give it a 1:8, and you can run 50's to 80's.

223 ackley improved isn’t a new thing at all. It’s an improvement to the 223 rem chambering that’s easy to work with, you can shoot factory 223 ammo, brass is cheap and plentiful. Lots of reasons it’s a popular “wildcat”

224 Valkyrie and 22 Nolser are Sammi cartridges created by Hornady and Nosler. My understanding is they were designed to increase performance when used in AR-15 platform, not really so much for bolt guns. I see no reason to mess with either in a bolt gun.

I like the 22-250, especially with a faster twist to shoot heavier bullets in a bolt gun. Not so much in an AR as you’d have to go to a 308 platform, totally different animal than an AR 15. . Relatively short Barrel life could be viewed as downside compared to 223AI

Just me thinking...seems that 22-250 has a lot of missed potential
As Jason discovered..It can be done.
I have a .223 Savage that needs a new barrel.
I'm thinking a 1~7 twist might be the ticket with the Hornady ELD 75 & 88s
Might be a fun experiment

It will go a whole lot farther down range, and buck the wind much better, than the 55's.

My 55 gr SGK load had an MV of 3780 fps. Sub sonic at 600 yards.

My 75 gr A-Max load has an MV of 3200 fps. Sub sonic at 1100 yards.

Using H-Varget I'm both loads.

I started shooting long distance with a factory savage varmint 22-250, pretty sure it was 1:14 twist. It did very well with this 52gr amax load from a company called HSM. Didn't get into reloading yet. I tried some heavier bullets and they generally did poorly. In fact, it was trying heavier bullets on this setup that i learned about the relationship between bullet weight vs twist ratios.

Knowing what I know now, I would totally do another 22-250 but like fireman do it in a much faster twist simply to shoot heavier bullet. Another thing that I know less about is asking for it to have a throat long enough to load heavy bullets with a longer COAL. I haven't done this yet, but I keep it in my mind. As a paper and numbers nerd, I have hard time seeing how some of these newer22cal cartridge offer much of an advantage, especially if one factors in the brass and ammo selection available for the 22-250 vs others.

How far down range will the core -lokt 55 grain travel and be accurate. Does not answer Blanco's question but am curious what the difference would be.

Ok then
You guys have convinced me to do it.

Pretty much every Core Lokt in every cartridge I've shot, was terrible, even at 100 yards. But, if you've got some that hold at least 1" at 100 yards, getting them accurately to 500 yards is about all you can ask out of them.

The new cases have better case geometry, which makes them more efficient. Some can make .22-250 speeds, with less powder. Some can make quite a bit more speed, with the same amount of powder, or a tad more, because they will hold more.

My .223 A.I. is right on the heels of my .22-250, but literally with 30% less powder. Unfortunately, you have to fire form, or hydro form to get there. I fire formed, and it shot terrific, while fire forming.

22 Creedmoor, will make significantly more velocity than .22-250, and they share the same action and bolt face.

past 400 yards it is becoming hard to hit smaller targets with that bullet in the 22-250, velocity loss and wind drift bite you. I have taken it to 600 yards with the old Nosler 60gr solid base but varmint accuracy was not really very good.

Back in the 1930s when the 220 Swift and wildcats for the 22-250 are documented, think about the scopes that were available (nothing like the ones we have now). The Swift predates the 22-250 as a commercial round by over 30 years yet passed it in popularity quickly in popularity. Bullet design and understanding of ballistics along with scopes were not nearly what they are today or information about them. Plus there were some great rifles back then but common sub MOA rifles off the shelf were not as common as they are today.

Given the number of 14 twist rifles out there I can see a reluctance of the ammo manufactures to go heavy in the 22-250 factory loads.

I think it is time for the 224TTH, 22-243 or more likely the 22 Creedmoor with a 1:8 twist or even 1:7 for the 90 gr bullets. You will get more velocity with those with the heavies than the 22-250 , yes they are barrel burners especially with long shot strings but have their place IMO. Like Judd said they make barrels while we sleep. I have a 27 inch Barreled 22-243 1:8 twist barrel that works great in with the 75-80 gr bullets that also shoots very good with the 55s but heavy is where it is at with that round. The 90gr Burgers do not to get decent accuracy with it though. Need the 1:7 barrel for those.

^^Those 90 gr Bergers are .224 missiles. Just gotta watch mag length. Cannot fit them in the mag, if loaded in a .223 A.I. Not sure about the short action .473" bolt face cartridges. I bet they would fit in an Accuracy International mag.

Man some good info here

Thank you for the info!

Lesser powder, now you're speaking my cheap-arse language! Once I burn out our 223 barrel, if we ever do, then I'd like to give the 223 ai a try. As for fire forming, I sorta already do that with standard chambers because of u. I've noticed the load I ended up pre and post fir forming is very close. I don't know if it's all in my head, but the post fire forming batches just seem to perform better. Less rando, inexplicable flyers.

I agree fantastic info here.
Jason that really answers my initial question of why hasn't anyone done the heavies in 22-250
Because it's a dated design and newer cartridges have better design and are more efficient.
Now gotta research 22 Creed

Measure new brass.
Headspace, shoulder diameter, body diameter at the web, body diameter at the datum line.

You will see variations.

Measure brass you have fired and resized. You will see far less variation. That's why fired and resized brass shoots better than virgin brass.

It is a hot rod.

If you really want to go wildcat (which I might) 22X47 Lapua.

6X47 Lapua necked down to .224.

Course the Creedmoor will make more speed, if you're trying to get all you can.

They will fit in a 22-243 on a short action 700, not seated to the lands though without turning it into a single shot. In an AI mag they will fit better. In the shorter case or the Creedmoor I think they would work. Those at 3200 or 3300 would be a beast of a 22 for long range. They really do not make sense thought in a 1:8 barrel as you are loosing some BC to stabilization. Better to run a good 80gr bullet a bit faster unless that missile is stabile.

I have killed deer and hogs with the 22-243 with the 75gr Swift Sirocco, it works well on them from 10 to 400 yards.

I was doing some reading the other day about a 22-243ai and the guy was claiming 75gr Vmax at 3900’ish FPS from a 24 inch barrel. He said the 90gr Berger was in the 3750 range. That just sounds nasty

Buy two barrels. Have them chambered at the same time. So when the first one goes south, you can trash it and keep on going.

Curious minds have to ask. Why does the 22 CM make significantly more velocity? Is the 22 CM more than just a necked down 6.5 CM? Will the 6.5 CM make significantly more velocity than a 260 REM? Is there some other case dimension changed other than necking up/down from 260 REM to 22-250?

.22 Creedmoor holds more powder. .22-250 body tapers quite a bit more to the datum line.

.260 Rem and 6.5 Creedmoor have made the same velocity for me, hand loading for both. .260 Rem requires about a grain more H-4350 than 6.5 Creedmoor to make the same speed as 6.5 Creedmoor.

.22-250 parent case is the .250 Savage. It is not in the same family as .308 Win, 7mm-08 Rem, .260 Rem, .243 Win.

22-250 is from the old Savage 250-3000 and is a little shorter and more taper to the case than the Creedmoor case resulting in less case capacity. You can fireform 22-250 cases to 22 Creedmoor and get functional brass tha will be a little shorter in the neck than spec but work.

Funny when wanting a fast 22 cal Winchester was presented with a 22-250 early wildcat but choose to use the 6mm Lee Navy case necked down instead. If they had gone the 22-250 case instead they would have had it 31 years before Remington standardized the wildcat.

Quite a few Remington cartridges are just standardized wildcats. 22-250, 260, 7mm-08, 7mm Rem Mag, 280 to name a few.

Thanks, had always wrongly assumed the 22-250 was based on the 308 family of cases... not sure why as the -250 part pretty much gives it away that it isnt.