I love my Little Dandy, works great for pistol calibers. It does require a pretty good investment as you will need to buy an assortment of the rotors. I keep my load data for ea. caliber & powder on index cards, at the bottom of ea. card I list the rotor# & throw for that powder. When I get ready to load I just slap in a rotor and go to town. I also have RCBS & Lee Micrometer set type measures, the Dandy's throw is just as consistant and I don't have to set it. The rotor chart is only good as a ref. the 1st. time you use one you will need to weigh a few charges to find the exact throw as temprature, humidity etc. affect it a little. Of course its no good if you are going for "Dead on Balls" accuracy, but as I only have room for a single stage press any time saving is a help. I only use it for range blasting ammo but thats about 90% of what I reload for anywho. It comes with the standard RCBS flat mount so it should thread into any mount the RCBS standard measure does. I have to confess I probably wouldn't have bought one (got mine free from a buddy of mine that only loads for "Anal Accuracy") but wouldn't part with it now. I still get Anal with my hunting loads but I only load about 50-100rds. at a time for those.
Hope this helps if not I'll refund what you paid for it! :mrgreen: