When I've shot Lee Enfields in a timed stage i loaded my chargers so each successive cartridge's rim was in front of the rim of the cartridge below. In order to avoid inserting the charger upside down I painted one half of my chargers bright yellow. As long as the yellow half was up I was good to go. I wanted to see how the good ol' Lee Enfield would fare against AR15s with all the bell's and whistles so I entered several IPSC competitions with both a SMLE and a No.5. I actually beat some ARs in a few matches but I was never in the money.