No limits 22-250 or 22cm

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AJC1

AJC1

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If you were going to do a barrel swap on a rifle which cartridge would you choose. Be mindful that any twist rate applies as this would be a special order. Is a 22-250 slinging 90 grain bullets better than a comparable 22 creed.
 
I would do a .22-250 AI, with a 1-7”twist.
This will allow heaviest.22 bullets to stabilize but also use lighter loaded lighter bullets without limitations.
Established, standardized dies, reamers, components and data.
No significant difference ballistically from .22CM.
(But what fun is that???).
 
GooseGestapo said:
I would do a .22-250 AI, with a 1-7”twist.
This will allow heaviest.22 bullets to stabilize but also use lighter loaded lighter bullets without limitations.
Established, standardized dies, reamers, components and data.
No significant difference ballistically from .22CM.
(But what fun is that???).
Click to expand...
I was curious if a 7 twist would be required or an 8 would work at the velosity generated. I havent seen load tables for a 90.in a 22-250 yet alone an AI to do the calculations
 
I'm doing a 22-250 AI for a friend of mine....... I don't see any realistic difference between the two of those.

The regular 22-250 May lag behind the Creedmoor a bit in terms of capacity I haven't actually checked but the AI version should be almost the exact same thing.

We're going to be running a 1-8
 
A few years ago I would done a 22-250ai now I may do a 22cm I have to see with brass cost and all before I really decided. I'd go 1-8 even 1-9 I don't think I'd go real heavy but the fast twist would be nice for the hammer bullets that are impressive. As a kid I've always wanted to do a 22-243 the 22cm is just about the same. A mauser in 22 Cheater would be cool As well.
 
troy fairweather said:
A few years ago I would done a 22-250ai now I may do a 22cm I have to see with brass cost and all before I really decided. I'd go 1-8 even 1-9 I don't think I'd go real heavy but the fast twist would be nice for the hammer bullets that are impressive. As a kid I've always wanted to do a 22-243 the 22cm is just about the same. A mauser in 22 Cheater would be cool As well.
Click to expand...
Simply due to brass availability I kind of wish we'd gone with the 22 Creedmoor..... It wasn't an issue until Dell loan the 250 to his nephew and the kids shot up all the ammo and lost the brass.....
 
AJC1 said:
I was curious if a 7 twist would be required or an 8 would work at the velosity generated. I havent seen load tables for a 90.in a 22-250 yet alone an AI to do the calculations
Click to expand...

90 gn bullet will require a 1:7

Also be advised that pushing some 90’s at speeds approaching 3,000 fps has been know to result in bullet failure
 
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Nature Boy said:
90 gn bullet will require a 1:7

Also be advised that pushing some 90’s at speeds approaching 3,000 fps has been know to result in bullet failure
Click to expand...
I read a lot about that also. Many barrels were greater than 7 like 6.8 or 6.5 which make me want to stay less agressive. If the valkyrie was more popular it would have meant a steady stream of quality 90s. 80s are very popular across several loadings making me question clambering heavier.
 
Nature Boy said:
90 gn bullet will require a 1:7

Also be advised that pushing some 90’s at speeds approaching 3,000 fps has been know to result in bullet failure
Click to expand...

Right. I have a 6.5 twist .223 as recommended by Sierra for the 90 gr SMK. If loaded fast enough to be supersonic at 1000 yards, not all bullets will arrive. Likewise a hot loaded 75 gr Hornady Amax.
Loaded down to where they do not break up, both are accurate at 600 yards.

Berger and JLK (discontinued) 90s are tougher and can be shot to 1000 yards. I don't know how even they will fare from a .22-250, though.
 
i've always wanted to do a fast twist 22 and shoot 90s. i was going to try a gain twist to see if it reduced bullets coming apart cause i was definitely going to try to push them at least 3150 fps
 
taliv said:
yeah, pretty much my last dozen barrels were bartlein
Click to expand...

Same here. Bartlein offers a discount deal for barrels delivered to a PRS match at our range once per year, and I buy at least 5 per year during that deal (they deliver something like 300 barrels each year to shooters at that match, it’s wild). I get 2 Proof barrels per year also at discount, usually prefits or AR barrels, and the odd barrel here and there (and whatever AR barrels someone orders), but anything I really care about has been Bartlein for the last 4-5yrs.
 
Personally, the benefits of an AI cartridge are twofold: 1) abundantly available non-AI ammo and brass, and 2) ability to shoot factory/standard ammo in a pinch.

BUT...

In this comparison, there wouldn’t really be any advantage to #2, as factory ammo won’t be loaded with an appropriate bullet for this desire. AND... There’s not really much availability lag between 22-250 brass and Creedmoor brass these days, so #1 is relatively moot as well...

So personally, I’d build a Creedmoor.
 
Varminterror said:
Personally, the benefits of an AI cartridge are twofold: 1) abundantly available non-AI ammo and brass, and 2) ability to shoot factory/standard ammo in a pinch.

BUT...

In this comparison, there wouldn’t really be any advantage to #2, as factory ammo won’t be loaded with an appropriate bullet for this desire. AND... There’s not really much availability lag between 22-250 brass and Creedmoor brass these days, so #1 is relatively moot as well...

So personally, I’d build a Creedmoor.
Click to expand...
My two considerations would be barrel life vs available load data. As a range toy 100fps vs 300 more rounds of barrel life would be a great trade. Were not exactly looking at a barrel with a long life ahead of it.
What are we looking at 900 vs 1200 rounds before the throat is gone...
 
You won’t get to 1200 with either, OR you’ll get twice that with both. Just depends on what you consider to be “worn out”. I don’t even get to 1200 with 6 creed without losing velocity, let alone cutting the bore area by 15%.

After shooting 22-250 and AI, fast twist 220’s, and (misguided) 22-243, frankly, I wouldn’t be terribly convinced one would really be 300 rounds longer than the other. If barrel life is really a consideration, a 22 Grendel or 22BR would be a better option, or a 6 creed, 6 Dasher, etc. Smaller case or larger bore - but either way, you’d give up speed. If the objective is blistering speed with a relatively big case 22cal, barrel life really isn’t part of the equation.
 
Varminterror said:
You won’t get to 1200 with either, OR you’ll get twice that with both. Just depends on what you consider to be “worn out”. I don’t even get to 1200 with 6 creed without losing velocity, let alone cutting the bore area by 15%.

After shooting 22-250 and AI, fast twist 220’s, and (misguided) 22-243, frankly, I wouldn’t be terribly convinced one would really be 300 rounds longer than the other. If barrel life is really a consideration, a 22 Grendel or 22BR would be a better option, or a 6 creed, 6 Dasher, etc. Smaller case or larger bore - but either way, you’d give up speed. If the objective is blistering speed with a relatively big case 22cal, barrel life really isn’t part of the equation.
Click to expand...
22 br??? Now that's interesting. I had considered a 30br as a range gun because it has to literally last forever.
So a 22-250 wont make 1k rounds? I dont shoot 243 for that reason. 1k seems to be my limit for acceptable round count.
 
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