While the Z5 is less expensive - it still is an Omega and it will shoot and really shoot well.

The problem I believe you might have is not in the metal parts at all. It may be in the stock (which is the same stock used on the SS steel regular Omega) and the way that the gun sits in the stock. Your last last shooting session gave me a clue. If you have not taken the gun out of the stock from the last session - DON'T - just leave untill hunting season is over... It is real possible that the barreled action moves around in the stock a bit and you may have found the good spot - so I would leave it alone. Make sure the two lug mounting screws are snug...

Read through this write up that I did several months ago - it might give you some answers or thoughts...

http://huntingnet.com/forum/black-po...-weakness.html

There are or is a short cut that could work in time for hunting season if you have time for another range trip....

mike