I've been reloading on a Rock Chucker for a long time & got into it when I was mainly reloading for my .30-06. Nowadays I find myself shooting more pistol calibers & want to reload for 10mm, .45, & .38/.357. The progressive style of press was making more sense. Onwards & upwards!! Thanks (I think) to Peter M. Eick & Yo for finally pushing me over the edge!