AR10 in 22 Creedmoor?

[AZgeek]

Anyone try this? Any advice would be greatly appreciated!

 

[TonyTheTiger]

SF10 Small Frame .22 Creedmoor - F4 Defense

Common Use: Predator Hunting The SF-10 is a compact, lighter, and more dynamic version of the AR10. Deemed by some as the perfect Predator Hunting cartridge, the .22 Creedmoor is a .224 projectile seated in a 6.5 Creedmoor parent case. The experimentation from seasoned hand loaders and...

www.f4defense.com

 

[Kocher]

Just finished an upper for my A.R. 10 one and seven twist 24 inch barrel it’s barrel by rainier arms Issue I have right now is the lack of powder selection for larger heavier bullets

 

[Kocher]

Varget, Tac,big game H380, Superformance, and a few other shooter world powders that were designed for the 6.5 Creedmoor , and some of that Vivitori stuff it was made for the 6.5 Creedmoor I believe it was N555...
So I’m not sure how I’m going to sling these pills down the range in 7twist.

Ideally it would’ve been a 8 twist barrel.
I may send the barrel back and pick up a mcgowen 1/8....

 

[dms416]

@McNamara0851

 

[McNamara0851]

I built a very legit 22CM for night hunting last year. I did load development and it shoots phenomenally well, but I never bought a thermal scope for it. It’s sitting in my safe collecting dust. If you’re interested in it I would sell it.

 

[AZgeek]

Decided to move forward with an AR10 build. McGowan offers a 22 Creedmoor chambering at a reasonable price. That said, I need some help with the specs. I plan on shooting mainly 80-88gr grain bullets. Not trying to reach the holy grail of velocity or distance. I would like to keep the overall build on the lighter side, handy and compact. Would the following specs fit the bill?:

Material​	416R SS​
Length​	18"​
Twist​	1 in 7​
Profile​	Standard HBAR (fluted)​
Gas system​	Rifle +2​

Thanks in advance for your help.

AZ

 

[AZgeek]

Also any recommendations on die sets?

 

[TonyTheTiger]

Rifle +2 sounds ambitious on an 18" barrel. It may work, but +1 would be the safer bet.

 

[AZgeek]

Rifle +2 sounds ambitious on an 18" barrel. It may work, but +1 would be the safer bet.

Roger that. Thank you.

 

[AZgeek]

I could go with a 20" fluted if that's a happy medium performance wise.

 

[Kocher]

I have a 24 inch w/ zero fluting and it is a tank.
The shorter barrel with fluting should make it much more handy.

 

[Kocher]

My lesson learned: use full length sizing die. I went with a basic hornady ( spent too much over this year). And NO donuts! On the base of the neck like I had with the neck sizer only. For the 2nd time around, it was a sing pass through the sizer on 6 creedmoor starline brass.
I had to neck turn on the neck only die. Very happy now.

 

[AZgeek]

My lesson learned: use full length sizing die. I went with a basic hornady ( spent too much over this year). And NO donuts! On the base of the neck like I had with the neck sizer only. For the 2nd time around, it was a sing pass through the sizer on 6 creedmoor starline brass.
I had to neck turn on the neck only die. Very happy now.

Thanks Kocker. Is 6mm Creedmoor Starline brass readily available these days?

 

[Kocher]

I checked recently and they now are on back order unfortunately they did have them in stock waiting for large rifle primer 6 mm Starline brass... 4 months now... so I purchased a 6 mm small rifle and I’m happy
I’m sure you can find it online from some dealers

 

[SP1123]

sgtofarms does them with tbox barrels. They are on his website.

 

[232593]

Does 22 Creedmoor beat up brass real bad like 22 Nosler?

 

[AZgeek]

Wish I could tell you. Between brass and barrel availability, never got this build done.

 

[Brett Cumming]

I built a very legit 22CM for night hunting last year. I did load development and it shoots phenomenally well, but I never bought a thermal scope for it. It’s sitting in my safe collecting dust. If you’re interested in it I would sell it.

Do you still have this rifle and still like to sell it?

 

[McNamara0851]

I do not, sorry.

 

[AZgeek]

A friend of mine is building a 22 creedmore in an ar 10 as we speak. Sadly, his intentions are to shoot the 75 amax. So im not sure he will put forth any effort for the 50-55gr stuff.

From whom did he source the barrel? Can you keep us posted on his progress if he does not mind?

 

[232593]

I have heard that 22 CMs need a certain amount of free bore space to launch the heavier bullets, anyone hear anything similar?