Factory 77tmk 223 ammo in 223ai

[KyleR1985]

Has anyone shot any of the factory loadings of 223 77tmk in 223ai barrel?

If so, accuracy/velocity reports?

Happy with reloading results with formed brass afterwards?

 

[sierracharlie338]

Depending on the type of ammo it may take more that one firing to get crisp shoulders but they will cycle fine and velocity would be similar to firing in a non AI chamber.

That’s how my 257ai was. Very happy with the AI outcome but I like to tinker.

 

[Te Hopo]

Ive found Hornady brass needs two stout firings to get that nice sharp shoulder, same with Lake City.
Winchester and PPU formed in one shot.

No less accuracy in my fire forming loads, I practice and hunt smaller game with them

 

[KyleR1985]

Thanks guys.

Was looking specifically at the 77tmk factory offerings, and the brass they come in.

I’m sure the general trends of shooting 223 in 223ai hold.

I’ll know soon enough I’m sure.