Some days you shouldn't bother waking up.
I must be going to have a bad hair day today, I know my painlevels are up and I tend to get a bit snappy.
Checking on another forum and lo and behold, HEADSPACE.
That same old question, can I just use a field gauge? don't you just feel like smacking them around the ears? no wonder I've got a flat forehead, I'll bet SON has spotted this too.
Maybe we should'nt need gauges at all, after all, with 'O' rings and tape and stretchy brass.... or should we just ask the ammo manufacturers for a range of case lengths for a bit of variation?
Maybe I should go back to bed.