Joe R said:zipollini said:
Joe - To what tolerance can you hold your 6mm neck thickness with the Gracey ?
I'm shoot F/TR mostly and only occasionally play with a 6CM (a.243 improved variant). I haven't tried to "thin to win" as benchrest people do, so I really don't know how thin it will go. When I shave the Winchester .243 brass I generally stay around 0.012 and it does that pretty well with maybe 1/4 thou variance at the most. I only spot check the brass and very seldom find variance, they usually show up on the runout gauge. I give it a second pass after I've fired the brass twice and that results in very little pixie dust.
I hope I've answered you question.
Joe
Joe R said:BenPerfected said:
Joe,
Have you tried a two cut process where the second cut is in the .0005 range? This works pretty good on the Forster.
Ben
Ben,
I know that many of us speak of 1/1,000th of inch casually, but that is such small amount that I/most people can't even see it without magnification.
To start talking about 0.0005 its a little ridiculous to me, I can barely measure it with a micrometer. But the way the Gracey works you could do it if you were willing to keep trying numerous times until you get it right. It is a threaded cutter, so if used an allen wrench with a long arm it would work, but I've never felt the need for that kind of accuracy. My objective is to simply make the case necks of uniform thickness. If one wants have case necks that are exactly 0.00825, it can be done, but you are going to have to spend some time and waste a bunch cases getting there.
That is exactly why I have two Gracey shavers, one set for the 6mm and the other for the .308, so that I don't have mess with it once I set it up. The only time I mess with it is when I have to change the cutter and I've done it once because the cutter lasts thousands of cases. On my 308 I have shaved at least 5,000 cases. Many I shaved two or three thousands in one pass. It makes an nice golden curly thread that has to be removed once every 50 to 70 cases to avoid interfering with the cutter or the spinning shaft. You can see them in the plastic cup next to the shaver. That's from the LC brass, some necks were .017 thick and I take them down to .014 in one pass without issues. To eliminate heat from the mandrel I apply petroleum jelly in the neck with a q-tip.
I guess I need to make a video and post it to YouTube sometime, it seems no one has made one. One of these days, when I have time, I will make one. I guess they sell by word of mouth because they do zero marketing.
Ben I hope I've answered you question.
Kindest regards,
Joe
Joe R said:Ok Guys,
I said I was going to make a YouTube video of the Gracey Neck Shaver and I did today. Here's the link https://www.youtube.com/watch?v=q4SSkMuDeDE&feature=youtu.be
I want to apologize for the jumpy video, but I forgot to turn off the auto focus feature of my camera.
Joe
IMO there is something way better, but as usual it isn't cheap http://www.matchprep.com/shaver.htm.
I just finished turning 250 cases (308) this evening and it took me slightly less than an hour. I generally average out about four or five cases a minute. On the web site they say 20 cases a minute, but I have no idea what kind of cases they are referring to. The motor spins at 1,480 rpm so it gives me a very smooth finish indeed. I am very pleased with mine, actually I have two, one for my 308 and one for my 6mm.
Kindest regards,
Joe
I can tonightSorry to go off track... but can anyone tell me the thickness of the base on the lathe, not including the L brackets? And the center to center measurement of the mounting holes I the base to mount to the bench?
I'd appreciate that thank youI can tonight
Wayne
Sorry to go off track... but can anyone tell me the thickness of the base on the lathe, not including the L brackets? And the center to center measurement of the mounting holes I the base to mount to the bench?
I load 6SLR which is a die formed 243 wildcat with longer neck and 30 degree shoulder. Prepping new quality brass means turning. One thing better than a 21st century lathe is having 2 of them so you don't have to change settings unless you want to. At the very least, get a 2nd complete head assembly so you can preserve your settings. The parts are all interchangeable just like Mr potato head...Anybody use the 21st Century neck turning lathe ? Does it work well ? Anything better ?
I'd appreciate that thank you
i got the 21st century and use it on 8 different calibers and love it. they do a great job once you get use to it!Anybody use the 21st Century neck turning lathe ? Does it work well ? Anything better ?