CZ 527 Sporter 23.5” / A2460/ 90 TNT’s

[MOW]

Reran this test I did last week but I screwed the brass prep up being in big hurry. Cases were too big and really had to cam over the bolt to load them. Both sets of data are very similar, and apparently it had little effect but, i didn’t know that at the time.

How did you screw up the brass prep and what did you do different to fix it?