Thread: What happens when your case has lots of room left?

With the 6.5x55 in particular I was finding I could get marvelous accuracy with the 120/123 gr bullets and a healthy dose of 2209, but with a few grains less in the 140gr bullet size I just could not get the same sort of accuracy until I changed powders [in this case to VtVh N560] and filled the case back up.