hmmm.
i haven't looked at mine lately, but it thought it said "target use only". and i think it is because the 40x trigger is adjustable to easily go below the advertised 2.5lbs.
I have shot any 223 under the sun through mine, most well sub MOA (beleive it or not wolf too) haven't seen a moments hiccup. I think it what the lawyers wanted to agree to put the good trigger on one.