I would start off with a turret press, which is something of a happy medium. There are a lot of things going on when you operate a progressive and if you do not have the background of loading individual shells you can make some big mistakes early.. Additionally, I think that progressives are limited caliber wise. I do not think that you can do such torque requiring maneuvers as full length resizing on a .338 with a progressive.
If every powder metered accurately through the powder dispenser you would put another plus in the progressive column. However, longer grain extruded powder will not. I have a couple of .204s that love H4895. There is no other way to deal with that powder than to weigh each charge.
I was thinking a progressive for my .204, but I would then be limited to loading H335, BLC-2 and maybe Benchmark if I wanted reasonably consistent powder weights. I could not use Varget or H4895 and these are decent .204 powders.
