I have a question for you guys,

I have a new .280 Rem AI and I loaded up 100 rounds of .280 Rem loads to fire form. I used new Rem brass, 150gr Winchester Power Points (cheapest things I could find) and approx. 50.6grs of RE-19, and Federal GM210M primers.

My question is this. Should I expect any type of accuracy while fire forming these rounds? I am not talking under 1/2" groups or anything like that. The rounds are very inconsistant. I am not sure if it is because the parent case doesn't fit snugagainst theshoulder of the Ackley or possibly something else. Any help you can provide I would apprectiate it very much.

Thank you