Elliot, i am getting 3340fps with a 55grn Sierra Blitzking out of my 223.
Load is 28 grains of H335 in Lapua brass sparked by a Fed 205M primer
Rifle is Sako 85 varmint stainless laminated 20" barrel with Hausken Mod.
http://www.hunt101.com/data/550/medium/P1220693.JPG
TB.