(No Females Allowed, Marca Registrada 2017)
That's EXACTLY why I bought it! Shit, you oughta be an FBI profiler! Even if you get it wrong, they'll give you a comedy job on Amazon Prime.
Trust me, I own one, Dillon is the only one that makes it and it has a limited use. So you won't see 'em hardly anywhere. There may be better, but damn, they are COSTLY. Not worth it, IMO. The Dillon is the best for the price, and oh, they're supposed to be coming out with inserts so you can use it with other rounds. I'm hoping magnums. With that solid ram, there's no way the brass is going in any straighter or less straight vs. a single stage. It's manually indexed, you have to turn it. Think of it like a single stage press that can do 4 things at once. It's not fast like a true progressive, but it's faster than a single stage by far. Your dies will be more important. CH4D is a lifesaver here, cheaper and they work well.
If your press can size and trim at the same time and do it with perfect results, why not? Not worth it unless you have thousands of pieces to trim, but the auto trimmer is really nice. And when loading, there is little pressure the press has to exert. The ram is HUGE. Just the press weighs around 100lbs. It's no joke. If you think you can't load accurate ammo on one of these presses, you are delusional. In addition, accurate ammo can be loaded on the 650 type presses as well --the Dillon powder dumps are by far the most accurate in the industry, period, and if you want more control just replace it with a funnel and use the digital scale.
The Dillon 50 gives you more freedom to work with, it's just a 4 head press and rotating shell holder. You can prime on press or off, use a Hornady powder dump or you can use that dump, then dump that into a digital press and tweak as necessary, or dump into pan, trickle then into case. Up to you. For belt ammo, I get it within tolerance. For bolt gun ammo, I weigh each load.
Using a progressive press to me used to mean cheating or cheaper ammo. I was wrong. There are some things you have to do different, but they still speed everything else up.
And FWIW, the Dillon 50 is totally unlike any press they've ever built. If you get one, you'll need a DAMN strong place to mount it. If you can bolt it STRONGLY to your floor using their stand, that's the best way, believe me. I put one on my bench and without some extra work and reinforcing, the down stroke was literally enough to rip it out of the bench (this was no weak bench to start with!). I forget how much force it can deliver, but it's a LOT. I imagine the RCBS will have a pretty tough ram on it and require a strong base too.