what is the head space gauge called? Does this give the same information that a L.E. Wilson Case Length headspace gauge gives?https://www.midwayusa.com/product/10...eadspace-gauge. I have these in my reloading calibers, and check ever round.

Can light strikes be had due to loose bolt head screw? I have been getting a few light spikes lately, but when I went to inspect the bolt, I realized the bolt head screw had worked its way loose, maybe a 1/8th to 1/4 of a turn. I tightened it up and was gonna shoot again prior to seeing if it is something else.