heard this issue before, here's my 2 "sense", with your bolt action rifle, you should be aiming for precision, unlike an AR platform which is designed for rapid suppression fire. Bulk M855 vs let's say Hornady will never compare in accuracy, so your options are shoot .223 match grade and be accurate or shoot bulk "surplus" ammo and risk damage to the rifling in your nice High Acuracy Bolt Action Rifle. Your twist rate is 1:9 for .223, 5.56 is better suited for the 1:12 twist , the higher pressure will eventually render your rifle inaccurate, in time.
Anyway .223 is just as inexpensive, so WHY would you risk potential injury and inevitable damage?