So, I tried to search the forum for my question first, and looks like it's been asked before, but for some reason, there's no directory to the posts. I want to know if anyone has experience with crimping, and if it is actually necessary for an auto loader, or is case neck tension suffice? I'm going to be handloading for a DD5v5 6.5cm. From what I understand, actually, I don't quite understand, because there's conflicting info out there, but it's either the recoil, or the force from the action than potentially can cause bullets to seat further down in a case, and apparently it either applies to the actual round being chambered, and/or the bullets waiting in the magazine. If anyone has any experience that confirms, or debunks this, I'd appreciate the feedback, thanks!