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I agree....set-up does not take long with the standard O.D. turners....it pales compared to the total time to turn 100cases or so. As far as speed when turning necks the 21st Century powered lathe is pretty quick but not much quicker than my K&M with a drill to drive the case. Both are very accurate when used properly with appropriate cooling and lube of the cutter/mandrel.
Howdy: I have done this brass resizing chase myself. I have a 6mm Rem. built on a '96 Mauser. When I first started loading for it, 6mm Rem. brass was hard to find in my area, so a reloading buddy suggested I reform 30-06 brass. I first annealed the the cases, a little below the necks, then ran them through a 7mm M. f-l die. Next was trimming them close to 6mm length. They were then run carefully thru a 6mm Rem. f-l die. Next, after talking to a couple of benchrester's, I Inside neck reamed the cases instead of out side turning them. {Theory was that inside reaming thinned the neck walls, without chancing cutting the case body.} After all that, they were length checked, and fire-formed with medium loads. Similar steps could be taken for the 25-06. Hope this helps and not confuses...
This didn't confuse at all, and thanks. But what you have left me wondering along with a few other posts and what I have researched, is this.
Back to ya...{is too much information, disinformation???} I maybe should have added that the cost of the reamer, extra f-l die, & file trim die, all from RCBS, was more cost-effective to me, and all work was done on my "old-reliable" Rockchucker. After fire-forming, I only neck size, for the next 8-10 reloads. (I don't max load)
The only reason that this person has bought multiple setups Horandy or otherwise is that he doesn't want to change the adjusted cutting length without cutting into the brass shell case's neck where the neck and the angle meet. This set up plus the the cutter head with the angle either 20 degree or 30 degree ground angle and the change out of the mandrel are the three required changes that need to made in order to neck turn any one caliber.
After just learning about the IDOD and watching that video. I vote for the IDOD and say we give it the crown.
That might give me case head separation!
Yes, the IDOD is nice. It removes any internal bulges, particularly 'donuts' near the base of the neck which can be problematic in wildcats, much more effectively than a mandrel expanded case externally turned. It is also lightning fast and does not require lube; it is much less messy. But...WAY overkill unless you want to turn necks on the side for profit or you need very large batches of prepped brass. My cases turned on a 21st Century lathe shot the same as those turned on my IDOD. Frankly though case neck turning 'for precision' is over rated in my opinion. It is necessary if you are forming certain cases or choosing to run a tight neck chamber but my results with turned necks are no better on target at 300-1000yds than a properly tuned load/bullet combination using out of the box necks. I know this may rub a few the wrong way but I have tested this (as well as many of my competition colleagues) and we have all come to the same conclusion. Flame away...I wear Nomex undies!It is a awesome machine, but if you aren't processing a lot of brass it isn't worth it IMO.....That said nothing like knocking out a 1000 cases in a few hours.
