Using pressure testing equipment (in my case an Oehler 43) can be a very humbling experience for a handloader. The number of variables can almost seem infinite. The number of different types of chambers, barrels, powder, primers, bullets, cases and the means they can be assembled is just a start. And then add in lot to lot variations and the fun compounds.
Spent two summers playing with a M43 a long time ago. We didn’t have a clue what we were doing when we started out—even computers were new to us! The learning curve was challenging…
I still open up my binder with the printouts of the pressure curves to review them once in a while.
My 30-06AI still has a strain gauge glued to the underside of the chamber……..😄
