After some initial trial and error, I hit upon some key guidelines to help you get the most out of this style of hypertrophy training while minimizing the mind-numbing fatigue it can create:
Fired cases do not reliably reflect the force with which the primer was struck. Because one print is deeper than another doesn’t necessarily mean the deeper print was caused by a harder hit. (The depth of print in a fired case is not a true indicator of the force of the hit, since on explosion the primer usually mushrooms around the firing pin. In actuality, if there were no explosion, the print would almost always appear much shallower. It will be noted there are exceptions where the primer is flattened out against the breech face by the explosion or does not mushroom around the pin ~ giving the impression of a comparatively light hit. The uniformity of Hornady prints has impressed me because it indicates uniformity in primer quality and consistency of powder charges.)
Clinical research still hasn’t determined a hard threshold level for when symptoms of low T begin appearing . Some recent research suggests that symptoms of low T might begin appearing in men when their total testosterone level dips below 320 ng/dl . According to anecdotal evidence from the owner of Peak Testosterone, many men start noticing low T symptoms when their total testosterone dips into the 400s . Of course, it’s anecdotal, so take it for what it’s worth, but it’s probably a good idea to stay above 500 ng/dl if you don’t want to experience symptoms of low T.