22 Creedmoor

[Txhillbilly]

Ok thanks got lots of them . Will start low and find out where I end up . You must be pushing over 3500 I would guess?

I'm averaging 3489 with this load. I use a 20" 1-7.5 twist X-Caliber barrel suppressed.

 

[kochie]

I'm averaging 3489 with this load. I use a 20" 1-7.5 twist X-Caliber barrel suppressed.

Ok thanks nice looking rig there buddy.

 

[White Eagle]

cept the bolt is on the wrong side

 

[3Ackleys]

I have seen 41 lock a bolt shut with old alpha, so you really really really need to do some research based on the exact type of brass that you’re using. You may be able to run more than that, or you may have to run considerably less. It depends on the brand and batch of brass. A chronograph and carefully monitoring pressure are important when working with something new.

There’s probably more bad load data on the web for the 22 creed than there are for the next 3 things combined. Be careful.

That's because 41 gr. of H4350 w/80 grain bullet is north of 77,000 psi, according to Peterson's pressure testing in a universal receiver.
From Peterson's:

80 Grain Berger VLD
Target COAL: 2.600”
Primer: Federal Large Rifle Magnum Match (GM215M)
Powder Type: H4350Powder
Charge Weight: 40.5 Grains
Velocity: 3,500 fps
Pressure: 77,343 psi*
This load is over pressure, and should be backed down considerably to get under the 62,000 psi safe working pressure.

https://www.petersoncartridge.com/media/1367/22-creedmoor-press-release.pdf

 

[Big Bo]

Love this thread. Still collecting components for my 8 twist Tikka. When the weather is better the testing will begin.

 

[22vartarg]

Vihtavuori powders has added 22 Creedmoor to their online app reloading data. I believe it’s free for a download.

 

[kochie]

Vihtavuori powders has added 22 Creedmoor to their online app reloading data. I believe it’s free for a download.

Ok thanks good to know like VV powder

 

[Brians356]

The 22 Creedmoor is essentially a 22-250 AI (30-deg). (If you don't buy that, skip what follows.)

FWIW the most Paul Box at Sierra could publish for 22-250 AI (40-deg) w/ 80-gr bullet from a 26-in barrel with any powder (several in fact) was 3300 fps. (He did not test H4350, but did XMR-4350; max 3100 fps.)
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