I just got done reloading some 357's. 15 grains H110 with a CCI SPM( old red and white box)with a 158 sjhp. I loaded 50 primers in my Lee auto prime that's mounted on my press. 1 of the cases was damaged going into my riged powder measure so I tossed the case out. I finally finished loading all 50 cases, I should have been short 1 primer. I know a standard spp was left in primer tray and was loaded into one of the cases. I eye balled every primer and can't find it. I know the charge isn't real high but might the outcome be? I feel like a complete idiot as I pride myself on checking and double checking my components so things like this don't happen.