22 Creedmoor Reloading

[NebraskaShooter]

Hi everyone!

Just bought a 22 Creedmoor. Gonna shoot 75 Grain Hornady ELD bullets. 1:8 twist barrel. I'm going to use H4350 powder as well. I am looking for powder charges for the 65 grain bullet using H4350. Thank you!

 

[lumberjack78]

You will spin your 65 gr bullets so fast that they will come apart in a 1 in 8" twist. Best to stay 75 gr and higher.

 

[spife7980]

Bullet RPM = MV X 720/Twist Rate (in inches)

3500*720/8=315,000 rpm, thats a lot but about what many 22 creeders are running. And Im betting when he typed 65 he meant the 75 he typed previously.

 

[NebraskaShooter]

Sorry guys! Yes, they are 75 grain ELD Hornady match bullets. Sorry for the fat thumbs!

 

[Ranger188]

You might need to run a slower powder.
I ran into pressure problems with H4350, before I had decent case fill.
Ended up using RL23
With a 8 tw. should be fine if you keep the speeds under control. In the 3300 fps range.

 

[Lowlight]

Here is some reloading data from Peterson

 

[triumph001]

Here is some reloading data from Peterson

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Definitely proves that when working with a new cartridge using someone else’s crazy ass load data posted on the internet is to be approached with caution and common sense. Where do they house this information? Wasnt able to find it on their site and wonder if they have any other new cartridges they have done white papers on. Would like to see this for their 25 creed brass as well.

That is very well done on Peterson’s part, really great data.

 

[spife7980]

Definitely proves that when working with a new cartridge using someone else’s crazy ass load data posted on the internet is to be approached with caution and common sense. Where do they house this information? Wasnt able to find it on their site and wonder if they have any other new cartridges they have done white papers on. Would like to see this for their 25 creed brass as well.

That is very well done on Peterson’s part, really great data.

Yep, interpolating their rl26 data, I’ve got to be in the 70ks on mine. I’d definitely like to see if they have any more papers to read.

 

[NebraskaShooter]

Great information! Thank you for obtaining it! It did find a load that worked out, and I'll share it with you all.

 

[NebraskaShooter]

I ended up going with 41 grains of H4350 for my Berger 75 grain VLD bullets. I showed pressure signs at 41.5 grains, groups that weren't as tight, and a bullet speed of 3480 fps.

The muzzle velocity is 3410, and I feel like this load will get better when I reach 200 to 300 rounds through the gun.

 

[NebraskaShooter]

 

[triumph001]

Yep, interpolating their rl26 data, I’ve got to be in the 70ks on mine. I’d definitely like to see if they have any more papers to read.

Maybe they will start making 300prc brass soon and do the same testing. Have a feeling at least one of the fellas in the 300 PRC thread could use a sanity check, afraid somebody is going to blow their face off in there.

 

[16 Gauge]

Curious what is barrel life like on the 22 Creedmoor?

 

[Ranger188]

It depends on barrel twist and how hard you push your brass.
Hard; 400-500 you'll get a lot of fire cracking and jacket damage
Easy; then whats the sense in having one, really 800-1000
It's an overbore caliber and never going to last 2000

 

[16 Gauge]

It depends on barrel twist and how hard you push your brass.
Hard; 400-500 you'll get a lot of fire cracking and jacket damage
Easy; then whats the sense in having one, really 800-1000
It's an overbore caliber and never going to last 2000

I was thinking .
It sounds like a fun round

 

[Ranger188]

It is, as long as you go into it with the idea it's not going to be a 223 or 308 barrel life.