Does anyone have any experience reloading Sig brass in 6.5 Creedmoor? I have about 350 that I picked up. I have sized and tumbled them, and just started to prime the lot. I noticed that some of them have really loose primer pockets. Like I am able to tap a primed case on the bench and the primer will back out of the case. Has anyone seen this before? I have only primed 10, but don't want to do many more if they are all going to be the same. Anyone see this before? Any workarounds?