Like the others, I have a full RCBS/RockChucker set up. My first 400 or so .450BM loads were done on that press. On the other side of the bench is a Dillon 650XL. It is not cheap, to get set up to load 6 calibers, you are going to be in the neighborhood of $1500 +/-. If that does not make you fall off your chair, then I would say that is your best bet. The Dillon 550 is also a good choice, not as much coin, and not as fast. After that, look at Hornady.
While I don't load .380 (even though I have one) I load all of the other calibers you mentioned plus 6 other calibers on the 650XL. The only thing I don't load on the 650XL are my .260 and .338-06. I load those in smaller numbers, 20 to 100 at a time and they are my hunting and sniper match loads. But I still load the precision .308 on the 650XL.
To load the .450 BM on the 650XL, all you need is a spare .45 ACP case adapter milled long for the .450BM case, the .45 ACP powder funnel adapter and the .450BM dies. I do have a Lee FCD die set up for the no-fuss stab crimp from Hoot
in the fifth station. I do say, the ammo produced there is every bit as accurate as the laborious RockChucker produced ammunition.
Here are some comparisons for loading fired brass ammo into ready to go, not including the time in the tumbler...it takes me about 1 hour to load 50 .308 with the RC system. In that same hour, I produce 450 rounds on the 650XL. For 9mm, I produce about 900 rounds per hour.
I have used Lee, Hornady and RCBS progressives, of those, the Hornady is probably the best, but the Dillon is better overall. Not perfect, but once you are in tune with whatever loader you get, you will be able to produce ammo at least 10 times faster than with the RC.