So yesterday im prepping 45colt brass i have a single stage and usually work in batches of 50. So sized and deprimed first 50 and i like to hand prime with lee hand primer. At about the 35 mark i ran out of primer so got a new tray out of the case of winchester lpp. after putting them in to the primer tray i started to prime the rest and the hand primer isnt working right the primers arent going into the ram so i take out primer tray and clean the ram and everything still no luck. after taking a little break and getting ready to call lee i still have the empty box from the primers im trying to load so finally take time to read it instead of assuming its right and of course its a tray of small pistol primers. how it got in the case of lpp i dont know but i felt really stupid that i didnt read first and didnt realize when i put them in the feeder tray that they were smaller.