Thread: 223 barrel length?

A run of the mill bolt action

Originally Posted by Beavis

A run of the mill bolt action

I have one of those and an AR and I think the BA would stand up better than the AR + I wopuld not like to rupture a case on the AR as no gas handling

Yip

Yeah I'm happier loading hot in a bolt action than an AR15 I think? What's your theory?

Originally Posted by gimp

Yeah I'm happier loading hot in a bolt action than an AR15 I think? What's your theory?

My theory is that a 5.56 AR will run safely at higher pressure than a SAAMI spec rifle by default. I'm certain an AR will catastrophically fail due to a hot load before a bolt gun will, but if the AR is designed to run higher pressure loads off the bat... Proper mil spec guns are proofed with a 70k psi load. Ramshot manual lists 5.56 loads running in the 60k psi range versus 55k for a normal .223.

http://www.ramshot.com/wp-content/up...ec_1-23-14.pdf

I shot a couple of goats at like zero meters with the 75gr BTHP at 2350 fps and was not impressed


e:75gr amax kicks ass tho

Righto thanks @gimp

Sent from my GT-I9300 using Tapatalk

https://www.sierrabullets.com/products/new.cfm

I'm also super keen to try the 155gr TMK in my shorty .308

But eg a remington 700 comes chambered in say 7mm rem mag as well as .223 with a 65k psi operating pressure and a larger case head so more force overall on the same size lugs etc

Pressure specs can be a bit meaningless?

Sort of, it really comes down to the rifle. I don't think you would have much worse than a sticky bolt, maybe a blown primer running warm 5.56 loads. What I meant was you may run into those issues with bolt gun if trying to hot rod it like I do. But those loads above are out of the book anyway.