I just got a new howa varminter .223 for " everyday" gun. Im really really enjoying this thing! But, I worked up a load ending up with 28.6gr H335, 40gr vmax COL 2.228 ( I think), rem 7.5's, winchester brass. Zero pressure signs as far as I can tell with great accuracy. Called it good enough, was 59 degrees as well. So I decide to run them over 2 chrono's. Basically 3820fps....Does this sound reasonable? its a 1 in 12 twist. Im just worried, should I be?