any progressive will allow you to do high volumes, those with case feeders will increase your volume as well. I can crank out a primer tube full of pistol rounds in my 650 in about 8 minutes. Loading rifle brass is still a two step process: the first pass to decap and resize, then you trim on the side, then the second pass to seat a primer, drop powder, seat the bullet and optionally crimp the case.
If you can avoid the trimming step by using a RCBS X die for example, then loading rifle would be a 1 pass procedure.
If you load high volume, truly load high volume. That is set up your press for one caliber and reload the bejesus out of it, e.g. 9mm. Crank out every empty piece of brass you have. The goal here is to avoid caliber changes on your progressive press.
Don't do like 500 rds of 9mm, then spend 20 minutes changing to 45acp, then crank out 500 rds of that and move on to the next caliber. Do 1 caliber at a time until out of brass then do the caliber change to the next caliber.
A caliber change on a 650 is relatively simple but still involves:
- new tool head
- powder measure if you don't a dedicated one for each caliber, this may also involve switching from the small to large powder bar or vice versa
- case feed plate
- case feed adapter bushings
- priming system
Here's how I would do those 5 calibers:
- start with 9mm
- switch to .223, since .223 uses small rifle primers you won't have to switch out the priming sytem on a caliber conversion, you'll have to switch the powder measure from using a small powder bar to a large one though
- then crank out your 300BLK. You won't have to change the powder measure bar nor priming system nor case feed system
- switch to 308. Now you'll have to swap out the priming system from small to large primers but not the powder measure bar as it'll still have the large bar from doing the .223 and 300blk
- then switch to 45ACP. You'll have to swap out the powder measure bar from large to small but not the priming system.
308 and 45acp uses the same shell plate I believe, so you won't have to swap that out.