Thread: ideal barrel length for 223, is there a formula?

Originally Posted by Beavis

If I built a bolt gun today in 223, I want a 1:7, maybe even a 1:6.5 twist. I wouldn't mind having a play with some of the 90-95gr bullets.

I'm currently running a 17" barrel on my GBC straight pull rifle and getting 2700fps with 75gr Gold Dots. I can load it hotter, could probably push it to 2800, but getting ok accuracy and using less powder where I am. This load really takes 223 to another place firepower wise.

With no semi options these days and most bolt actions like the Tikka's not sized to the 223 case at what projectile weight would it be more logical to just buy a 243 and be done with it. I ask as 90-95g bullets seem to be 243 territory.
Full disclosure I do not own a 223 or 243, just an interested observer.