I Have a Lee Pro 1000 in 45 and 9mm as well as all the dies to so 38, 380, 44 & .223. I enjoy loading with mine. I recommend doing a little research to eliminate the chain on the powder drop as well as the advise to keep the primer feeder slot from getting empty. In answer to the question of changing primer setups. The 45 will come with the large primer setup only so you will not have the equipment to load both in the beginning. If you decide you like it and purchase the 9mm you would then have all the pieces needed. To change out the primer devices requires you to take the machine almost completely apart (about the same as changing shell plates.) Lots of typing to say I enjoy mine but they are not for everybody. They work pretty well for pistol but I will do my .223 on my old RCBS from now on. Case feeder works well, bullet feeder not so much.
Hopes This Helps.
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