I just bought 500 new Starline 45 Colt cases. After belling a bunch of them I loaded up about 30. I noticed that it was much easier to seat the bullets than usual (obviously the inside case diameter was greater than that of my old resized cases). I am wondering if I should run the other new cases through my resizing die before loading to give greater neck tension. I use a Redding Profile Crimp Die. I went out and shot these loads and the accuracy and velocity seemed to be normal and the extreme spread was less than usual so I am doubting that running the cases through the resizing die would help. Thanks, Brian C.