This I think is one of the more interesting ammo related videos on youtube at the moment
youtube.com/watch?v=VwEgAkI6sEA
another good one for Winchester but a bit more of a company promo
youtube.com/watch?v=5XhOSXD … re=related
finally, and this one might suprise you a little bit if you were expecting to see them all sitting cross legged on the floor filling the shells by hand, POF