22-250 converted to 22 Creedmoor

[prcwv]

We have caliber restriction off 22 for night hunting. Love my 22-250 but more energy an just as flat shooting thought why not. Actually just picked my Tikka T3 back up yesterday from being rechambered. Gonna try it out in a bit with a normal scope see how it groups

 

[TaperPin]

Unless the 22-250 had a tighter than saami chamber, running a 22 creed reamer into the chamber won’t touch most of the neck or throat, since it’s designed for a tighter fit. Not saying it won’t work, or is a bad idea, but I wouldn’t expect the accuracy gain of the newer cartridge design.

 

[Duh]

Question about the 22-250 or 22 creeds. With the 1:8 barrels running higher FPS or RPM’s it appears hornady’s 62 grain VT isn’t the ideal match because of possible stability issues or the bullet coming apart. Is that just hornady’s base line guidance to follow SAAMI specs?

I’ve seen a couple other forum postings about guys wanting to shoot this higher BC bullet (62 gr VT) but being told that the bullet either won’t stabilize or will come apart if being run at higher speeds with the 1:8 twist.

I also saw Hornady responding to some YouTube comments that a hand loaded 22-250 in a 8 twist would be great.

 

[prcwv]

Tikka 22-250 1 in 8 converted to 22 Creed. That was at 100yds with Texas Ammunition 80gr ELDM gonna hand load some 75 ELDM an 77TMK with RL23 or 26 haven't decided yet.

 

[2BrownDogs]

A LOT of guys have had 88s blow up with a 7 twist Creedmoor. Usually as the throat gets a bit thrashed, and really pushing speeds with 26"+ barrels. I've heard of zero issues shooting them from a 8 twist. I suppose a 7.5 may be ideal.

I’m throwing around re-chambering an 8 twist 22-250, or possibly ordering a 7.7 twist from Carbon 6 (I’m in South Louisiana near them). I’ve listened to Hornady and Horizon guys talk about over-spinning bullets past 300k rpms and having issues. Ultimately I want to shoot the 88 ELD-M’s from an 18” barrel, since I’m basically at sea level, I think the 7.7T is necessary to stabilize, but at 3200 fps that yields 299,220 rpm. Pretty darn close. I wonder if this is a legitimate concern at that number or if Hornady is issuing a “CYA” statement to guys wanting to push those 88’s relatively hard. Of course if it was an issue, could always back off the charge, but what’s the fun in that?

 

[Seeknelk]

I’m throwing around re-chambering an 8 twist 22-250, or possibly ordering a 7.7 twist from Carbon 6 (I’m in South Louisiana near them). I’ve listened to Hornady and Horizon guys talk about over-spinning bullets past 300k rpms and having issues. Ultimately I want to shoot the 88 ELD-M’s from an 18” barrel, since I’m basically at sea level, I think the 7.7T is necessary to stabilize, but at 3200 fps that yields 299,220 rpm. Pretty darn close. I wonder if this is a legitimate concern at that number or if Hornady is issuing a “CYA” statement to guys wanting to push those 88’s relatively hard. Of course if it was an issue, could always back off the charge, but what’s the fun in that?

My 7 twist is now 18" and shooting the 88s just fine still. At about 3000 fps from 22cm.
I'd be surprised if you get near 3200 with a 18" 22-250. Anyway, you should be way good with 7.7.
Lots of guys are using the 88s in 8 twist barrels.

 

[Mike D Texas]

I’m throwing around re-chambering an 8 twist 22-250, or possibly ordering a 7.7 twist from Carbon 6 (I’m in South Louisiana near them). I’ve listened to Hornady and Horizon guys talk about over-spinning bullets past 300k rpms and having issues. Ultimately I want to shoot the 88 ELD-M’s from an 18” barrel, since I’m basically at sea level, I think the 7.7T is necessary to stabilize, but at 3200 fps that yields 299,220 rpm. Pretty darn close. I wonder if this is a legitimate concern at that number or if Hornady is issuing a “CYA” statement to guys wanting to push those 88’s relatively hard. Of course if it was an issue, could always back off the charge, but what’s the fun in that?

I have a 7 twist 22-250 AI with a 25” barrel that runs 88 ELDM and 90 grain ATip bullets at over 3300fps and they both hold up fine.

I won’t be converting to a 22CM either.


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[Castle Rock]

I am at about sea level too and my 22/250 Tikka won’t even stabilize 80 ELDM over 400 yards, they don’t keyhole but just don’t shoot well

 

[Duh]

Ok I’m looking into buying another new tikka 22-250 and sending it off to be re chambered into 22 CM. I talked to a local smith and he can do it but says he’s not that comfortable with doing it because of accuracy issues.

Anyone ever have accuracy or any issues for that matter after getting a re chamber?

 

[willfrye027]

Ok I’m looking into buying another new tikka 22-250 and sending it off to be re chambered into 22 CM. I talked to a local smith and he can do it but says he’s not that comfortable with doing it because of accuracy issues.

Anyone ever have accuracy or any issues for that matter after getting a re chamber?

I did two. One shoots good with the 88s, the other I sold on here before shooting and the new owner has it shooting good from what I understand.

The factory barrels are good quality, whether or not your smith does a good concentric chamber job will probably be what’s important.

 

[Miflatlander91]

I did it and my buddy saw what my tikka would do and built the same gun 18” tikka in 22cm mine pushes the 88s right around 3050


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[Duh]

I did two. One shoots good with the 88s, the other I sold on here before shooting and the new owner has it shooting good from what I understand.

The factory barrels are good quality, whether or not your smith does a good concentric chamber job will probably be what’s important.

Good to know. I’ll probably send it off to Kampfelds. Seems like everyone has good luck with him. The local guy being unsure about it makes me less confident using him.

 

[ProAlpine]

This thread popped up while doing some research on converting a Tikka 1:8 22-250. One question I had that I can't seem to find an answer for is: if I'm starting with the Tikka platform, is one re-chambering easier than the other, 22-250AI vs 22CM?

 

[prcwv]

Mines a Tikka 1 in 8 converted Smith said it was easy peasy. Biggest advantage for Creedmoor is you can buy new brass don't have to fire form. I love mine. It shoots lights out

 

[ProAlpine]

Mines a Tikka 1 in 8 converted Smith said it was easy peasy. Biggest advantage for Creedmoor is you can buy new brass don't have to fire form. I love mine. It shoots lights out

Who did you use to do the conversion? You're using the stock Tikka barrel, right?

 

[prcwv]

Who did you use to do the conversion? You're using the stock Tikka barrel, right?

It was a local shop Gostomski gunsmithing. Frostburg MD. Yep bone stock T3X lite

 

[Nine Banger]

I'm on this fence leaning towards sticking with 22-250 or going AI.

It seems like the juice isn't worth the squeeze on a chamber mod, but to order a prefit when the 22-250 is shot out would definitely be a 22 creed.

 

[prcwv]

I'm on this fence leaning towards sticking with 22-250 or going AI.

It seems like the juice isn't worth the squeeze on a chamber mod, but to order a prefit when the 22-250 is shot out would definitely be a 22 creed.

It's all personal preference an what your bidget an what your willing to put into it.I still have a 22-250. But I love pushing a 75gr bullet 3490fps.

 

[RDF1]

Is the 22C based off the 6.5C brass?

 

[prcwv]

You can use 6rd or 6.5 crd brass. But several ppl including Hornady make brass. I reccomend Alpha or Peterson