BartB said:I asked because partial full length sizing typically moves the case shoulder forward a thousandth or more. Evidenced by any resistance to the bolt closing.
BartB said:If the fired case shoulder is set back any amount when resized, that's traditionally called full length sizing.
My pilot starts at .215 and tapers up to .219.My pilot is .306 and its a Forster. Shouldn't matter what brand turner it is. What diameter is your pilot? I run my necks at .307. My procedure makes very little to no spring back.
work hardening does not occur in the sizing dies, it happens from repeated firings
A friend full length sized then reloaded the same 308 Winchester case 65 times without annealing. The 65 shots at 100 yards went into a 3/8ths inch group.I contacted Redding, about the body die.
Asked them if a body die not sizing the neck prevents work hardening....... In my mind a typical FL die oversize's the neck and would work harden it especially when expanding it and the body die would be a great tool along with Lee collet neck sizer. Sound good? But he said...
I case is worked either way, no?
When I tried turning the necks after sizing, I did lube the necks inside with ground mica powder due to getting some brass galling on the mandrel. I’ve never tried anything on the outside of the necks for the cutter. Being brass it cuts pretty clean and I’ve probably turned somewhere in the neighborhood of 4000 cases and am still using the first cutter just fine. I also think your skinning off such a thin layer and I don’t do it at a high speed so there’s no real heat/friction build up to bother with lubing.oh yeah I forgot about that....
Do you use lube on your cutter?
I mount my turner in a bench vice, it makes it easier to turn. I use a q tip and dab it in synthetic motor oil, run it completely around the neck, make a pass, and then relube again on the way back. Lightly 000 steel wool, and then check on my tube mic on a pivot vice.
I may give it a try. I actually have the Hornady setup, not RCBS. I get what your saying, but I think by controlling the speed it’s been working pretty good so far but never hurts to try something new to see if it improves things. I do have some junk brass I use for plinking ammo I could play with so I’ll check it out.it cuts smoother with lube on the cutter and I don't think your RCBS cutter is carbide, it's just steel so it will increase the life of the cutter.
Yes, except for the SAAMI spec chamber, but that dosen't matter.LOL.....sorry I had to laugh, please don't get offended. And does this friend of yours have a custom chamber/custom die? and.. a heavy barrel, totally worked right?