I致e owned a Dillon 550 for about 25 years. I don稚 think it痴 any harder to learn on a progressive than a single stage. It痴 doing the same thing, just all the steps at one pull of the handle.
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I fully agree! If you can change a tire and oil and filter on a vehicle, you can handle a progressive press. ( I do know a couple guys who can't do the mentioned tasks!).
I got in to Cowboy Action Shooting (CAS) years ago and would go through a lot of .38 special rounds for pistols and rifles so I did a lot of research and the Dillon 650 was the best choice for me. I haven't been active shooting the last few years (Son was in sports, I coached some) but It seemed like I could reload about 600-800 rounds an hour (Having primer tubes prefilled gets the higher number).
It wasn't hard to setup the press and dial everything in. I have probably reloaded 15-20k loads of .38 special.
I got a great deal then from Grafs & Sons
The Reloading Authority - Graf & Sons.
As others have said, get a reloading book or two or three, plus look at all the ammo manufacturer websites, Winchester, Hodgon
Hodgdon – The Brand That's True, Hornady, etc and they will have current loads for almost any load you want.
Many in CAS use powders that can be used in pistol/rifle and shotgun, Clays or Clay Dot is my main powder.
I also have an older Ponsness Warren 12ga progressive press I bought from a friend 3-4 years ago. Back in the 90's, A few of us that shot skeet league together chipped in and helped him pay for it so we could use it. We all moved to different states and I contacted him about getting a similar one and he just sold that one to me. Said he doesn't use it enough.