22gt in ar15

[Brownie36]

Has anyone built a 22 gt in a ar 15?

 

[RegionRat]

I saw this article recently.
https://sdrifles.com/22-gt-ar15/

 

[Brownie36]

Thank you.

 

[Kimber.204]

What am I missing...How are they getting a .473" case head in a small frame AR?

 

[Dale264]

What am I missing...How are they getting a .473" case head in a small frame AR?

The 458 socom and 450 bushmaster use a .473" bolt face but they are run at much lower pressure than a 22GT. I forsee a few broken bolt heads if they're pushing pressure to 52k psi.

 

[Brownie36]

My thoughts exactly!! I think I will call them and see what they say. The speeds they posted in the article had be upper end pressures for any bolt.

 

[Brownie36]

I sent an email to the builder. Hopefully he will share a magical secret to make this setup work safely for 22gt

 

[mdram]

isnt the coal too long?