I really do get what\’s happening here..that its due to the shape of the bullet. The variable chamber thing I think could, due to the bullet shape (dimensions) be a factor. However, if we as reloaders make some vague attempt to follow SAAMI standard while we reload, it stands to reason the component maufacturers have some rationale to maintain those standards as well. The MIN length by SAAMI for a 9MM cartridge is 1.095 in. That minimum..certainly a far cry from the 1.060 folks are attesting to here. And, the maximum SAAMI is 1.169in. Which..who the heck would do that (at least from this blog). Are we saying here that some of these chambers won\’t accept factory white box 115 ? Do you do \”plunk tests\” when you go to the range with a box of white box ? I really doubt it. By the way, yes, I know that many munitions folks (Hornady at 1.060 and Sierra at 1.090) load some of their ammo outside of that standard and I understand the rationale, but how can ammo pundits and keyboard warriors excoriate the sittin\’ at the table reloader when said reloader goes outside the \”box\” It appears we all do ! Why is there a standard? I dunno….