Still another viewpoint
I loaded for many years on a single stage RCBS press and waited FAR too long to go progressive. I finally bought a Dillon 550 in, I think, 1989. I have several comlete toolheads, powder measure and all, for it, plus a few spare toolheads for my lesser-loaded calibers. I still single-stage almost all my rifle cartridges.
I picked up a used Square Deal B set up for .38 Special two or three years ago. After I looked it over, I decided I'd never swap calbers on it - - Just too much trouble, and I already had conventional dies for almost every cartridge I'd want to load. I got a very good price on this used machine. I agree with
James Thomson about the price difference, 550
vs. SDB. At today's prices, I'd not buy a new SDB.
I sent the SDB to Dillon for a complete refurbishing, and it works flawlessly, within design limitations. I'd prefer it to be set up for .45 ACP, as this is by far what I shoot the most. I don't load ANY heavy charges on the SDB, but this is fine, due to my likng for alloy framed revolvers.
It would be ideal for me to have two 550 presses, leaving one set up for each primer size, with the single stage for rifle stuff. I guess, with the rising ammo prices, I'll probably begin loading .223 progressively.
Pending aquisition of another 550, I'll keep the SDB. Like
redneck2, I'm not overly fond of the auto indexing feature. I really
LIKE the manual advance of the 550, so I can do a bit more quality control as I go. With the SDB, once you start the handle cycle, you are committed, and it is a (minor) hassle to pull a case out of the rotation. Personal preference. I've always preferred slow-and-steady production to blazing speed. (That is, until I'm short on .45 ammo, with a submachine match the next morning.
)
I started out with a Dillon progressive and I'm another
BIG fan of their customer service, seldom as I've needed to use it. Both RCBS and Hornady make many fine products, and I have nothing against their progressive presses - - I've simply never used them.
Best,
Johnny