Near 50 years ago,I would punch flash holes through Berdan primed 30 carbine brass with my decapping pin,crush primers into the crimped pockets,and dipper-dump 2400 or whatever reasonably appropriate available powder into the case. My goal was a "bang" that did not wreck my $ 65 gun,but would cycle the next round. I did not need accuracy because I seldom used sights on fleeing jackrabbits. I was 17 and having fun.
Brass life was not a consideration,
In its crudest form,that was reloading. It met my needs. For a few rounds of decent ammo,a Lee Classic set and a hammer will do.
I fully respect those who RELOAD to make recycled ammunition that is safe,accurate,and meets their needs. This can be done very well with minimal equiptment
I believe you are right,as far as that goes.
But there are also Handloaders. They are after something more than a good replacement for factory ammo.
No one has to go the extra,but the Handloader deserves respect,too.
There is nothing to be gained from criticizing someone who uses a bushing gauge to tailor head clearance.
Yes,the water does get muddied up .It is confusing and distracting. I also notice it seems like 95% of the posters have an emphatic opinion on case gauges,and about 20% of them know what the tool is designed to do or how to use it.
Example: The word Datum is thrown around as a term of mystery and confusion with NO supporting text. Its the property of the keeper of knowledge.
I had enough of the misuse of the word and the silly,confusing game.,and took the time to correct it.
You may scoff. Many know too much to learn.But I'll bet the OP,hungry for the answer,learned about his gauge and its uses.
I treated the OP and his question with respect.