If those are the first rounds you've shot, it will take some break in before the barrel settles down. After flitzing the bore on my Ultra, it took 60-80 rounds before I saw groups less than an inch. Some take 200+ rounds before the bore is broke in well. Have you polished the bore per the link in the FAQ? How's the crown on the muzzle look? Not everyone's .223 likes the WWB ammo, there have been those that don't. Another one to try if you don't get good results after a while is the Ultramax reman 40gr Nosler BT, it shoots real good in mine, but costs more, too.
Some basics to remember...
Make sure you follow thru with a full pull to the rear on the trigger, the transfer bar needs to stay up for consistent pin strikes.
Place the front rest just ahead of the trigger guard, most Handis don't like to be supported under the mid forend.
Tim