On Sunday I shot some loads using 18.5 grains of Accurate #9. I noticed a faint second indentation on the Primer? I was still under max for Tier 3 Ruger loads and the chrono verified velocity . I plan to back down a grain and shoot a few more. I don't need max loads. Is this a more serious issue? I am also working up a parallel load for hunting with 260 and 270 grain boolets using Aliant 2400. hc18flyer