Get a Dillon 550. (or two!) You won't be sorry. I have two set up side-by-side. One is for small primers and the other is for large primers. Set up a tool head with powder measure for each cartridge you load and conversion will only take a minute or two. For handguns I tumble the cases and then feed them into the press. For rifle cartridges I full length size and tumble them before feeding them into the Dillon.
