Well, I finally fired my first reloaded rounds this morning in my .222rem, and thankfully they all went bang and they all hit the target. I'm using Reloder 7 and 40gr Nosler Varmaggedon. Shot 2 groups of 5 @ 100 yrds with the rifle zeroed @ 170 yards which I had being using for the 50gr Hornady factory ammo. Starting load was 21gr and was high and to the left. My question is, should I re zero now using the start load before I start to work up the load, or should I keep using my existing zero and concentrate looking for the tightest group?