Re: Thoughts on a Turret press
I'm no great fan of turret presses mostly because of the flex, the turrets have to be a little loose or they couldn't turn. Anyone thinking a T7 has no flex hasn't put a dial indicator on one during resizing.
That said, the "flex" in the Lee turret system is clearance for the auto-indexing, not real flex. Once the ram lifts the turret up to the steel stop/retaining ring there is very little more lifting going to happen, it's a VERY GOOD press!
Iron/steel turret presses work fine for those who load one or two cartridges, then the necessicty of swapping dies returns us to the same swapping around as if we had a single stage, no net gain at all. IMHO.
I have a 24 year old Rock Chucker II, a Lyman Spar-T turret and a couple of Lee's tiny "Reloader" C type alum alloy single stage presses on my bench now. When I first got my precision dial indicator and a magnetic base I measured the flex/spring/lift of the RC and two Lee's when FL sizing .30-06 with the same sizer die; the RC lifted almost 3 thou but the Lee's didn't lift enough to measure. Seems Lee is right, their alum alloy IS more rigid, within it's yield limits, than cast iron. (I didn't test the Lyman turret, that would be laffable!)
I've used my own and several friends presses of different types and brands, single stages and turrets, for consistancy and run-out tests when using the same dies and components. I'm yet to see any difference in the end results between presses when the same level of care is used in the loading. Even my flaky old Lyman turret does good work if I do!