Weird. Would not expect that. To me it’s gotta be something with the difference in case size and powder burn/pressure curve with the Swede and bullet size.Yea modern pressure stuff. Was shooting them side by side and it was a wtf moment LOL
What are the two powders you are using?
I wonder what the difference would be shooting the heavier class 6.5 bullets where the difference is double the 18 grain difference. The bearing surfaces of the bullets relatively speaking, etc that go along with the difference in size.
My experience and apples to apples I can’t see how the 6 creed would be more than the 6.5 creed shooting 108 vs 140 grain bullets from the same case with about the same powder.