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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...

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

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

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...

Yip

A run of the mill bolt action

Didn't see my mention. I have found you just need to experiment. Different bullet and powder combos give wildly different results in different guns. Some numbers off the top of my head for different...