I have a 550 and am not that familiar with the 450, but isn't the 450 basically the equivalent of a turret press? You can certainly operate it as such by loading one round at a time, advancing the plate, and continuing the steps one at a time. I know I can do this with my 550 if I choose to, so I assume you can do the same with a 450.

Bottom line is that you're not forced to operate it as a progressive, you can use it as a single stage turret press, which is precisely what I would suggest you do to get started in reloading. Once you get more comfortable with reloading, you have the option of taking it to the next level.

Lou

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NRA Certified Instructor & RSO