550 will do what you want but it won’t be cheap, especially if you are loading large and small primer rounds. First it takes two, one set up for large primers, one set up for small primers. The most significant issue with 550’s is changing out the primer feed. Not impossible or terribly difficult but it takes time and takes care.
So, no we have two 550’s each mounted on a hard mount. (The hard mount puts the press towards the middle of the bench. Less stress on the bench and less stress on the user. ). Next we need a tool head for each round. This keeps everything set and ready to use. If using the Dillon Powder throw, each tool head needs to have its dedicated powder throw. A significant investment In cost but a major, major time saver.
So, now the good part. If the case holder is the same, as in the 6.5CM the 308 and the 22-250, alls one has to do is put the appropriate tool head on the press and you are ready to load. Takes about 20 seconds. If a fellow has to change out the case holder plate and buttons, this adds about 2 minutes. Just make sure you don’t loose the buttons. Nothing could be easier. (Don’t forget the tool head holders. Keeps em neat and in place.
For a dedicated press, I really like our son’s 650 that he uses for 9mm. If .223 is the only small primer round you are going to load and it is primarily for you, a gas gun, than a dedicated 750 would be the pick rather than an additional 550. Of course if the .223 is going in multiple rifles or a prs style rifle than the 550 would be my choice.
So the cost of two 550’s or possibly a 550 and a 750 plus all the additions needed is going to be an investment. However, after 20+ years of loading with 550’s, loading everything from 9mm up including multiple wildcat calibers for handgun silhouette, I can say that once you’ve spent the money your good to go for the rest of your shooting career.
