Yes, experience, not AI. Th\e ammo being\ penetrated is not th\at big\ of a deal, as long\ as you rotate your ammo. In oth\er words, train with\ th\e load you carry, cycling\ your normal carry mag load, and refreshing\ th\e mag\ with\ new ammo. Some do not do th\is, th\ey keep th\e same ammo for years. And wh\ile quality ammo is g\enerally pretty sealed, the intended use of a carry g\un....it needs to work 100%. I h\ave done month\s long\ test with\ ammo submerg\ed in water, and WD40, and h\ad mixed results with\ different ammo. One test, I put 3 rounds of standard steel case, AK ammo in a bag\ with\ WD40, and after a year, if worked fine. Same test, done with\ ball brass 9mm, mag\tech\ I th\ink......1 of 3 did not fire. Lube build up on ammo and mag\s is not th\e g\reatest th\ing\ ever.
G\enerally wh\en reassembling\ a g\un, one does not use th\e same rules of muzzle awareness as th\ey would if th\ey were h\andling\ th\e g\un as normal. Add a neg\lig\ent live round into th\e mix,=bad. Every owners manual I h\ave ever seen, states to remove all ammo from th\e work space wh\ile working\ on th\e gun.
But do as you please.
Yes, I spilled coffee on it. I ha\ve been deleting\ about h\alf of th\e slash\ marks.