School me on neck turning

Quicky06

Sergeant
Full Member
Minuteman
Nov 25, 2008
308
0
36
St. Louis
I'd like to start turning my 308 necks. Don't ask why it's just the only thing I don't do.
I really can't find a walk through anywhere

Well questions

inside or outside? I see reamers and outside cutters which one or both?
Turn before or after sizing. I neck size and full length size every 5 rnds.
How much to take off? Factory remmy chamber
any prefered tools? I was looking at a foster trimmer because I need an upgrade and there is a turning tool for it.
 
Re: School me on neck turning

Only ream the inside to remove "doughnuts" at the top of the shoulder if one exists and you seat the bullets deep enough to hit it.

You want to outside turn. New brass makes it easier, but you can turn fired brass if the brass is kinda soft still or if you lube it a lot on the inside. Yes, you size first. Remove just enough to make the neck the same thickness all around; or at least like 80% of the neck (a little bit of area that's just a wee bit thinner will get evened out after firing). Turn down as little as you can unless you're trying to change tension or something. Think taking off like 1-3 mils, which might land you at about 12-15 mil thick neck walls depending on the brass.

Sinclair neck turning tools are good. They sell a case-holder that you chuck into a drill for fast work. I use a bit of imperial sizing wax on the inside and out while turning (learned from Zediker book). Don't know about Forster tools, though I like their dies!

My personal experience trying to turn for a factory rem chamber left me realizing it was kind of a waste of time. I'd be interested to hear if you find otherwise.
 
Re: School me on neck turning

Basically what "biglakes" said.

I prefer a 1/2" keyless drill chuck instead of any shell holder. Try it. You'll never go back.

As far as turning tools Don Neilson's "Pumpkin" turner can't be beat. Get the carbide mandrel for it. His inspection instrument is great also.

Use an "S" Redding f/l sizer and forget about neck sizing. Just adjust your die to fit your chamber.

I agree about being a waste of time on a factory chamber. Unless you have some BAD ammo runout, .005" or more. Then I would check the case necks for carbon buildup first.

Good luck.
 
Re: School me on neck turning

Yes but I like Waisting time by playing with diffrent reloading techniques. It's much cheaper than the casino lol. I'm still trying to find a fast loaf the she likes but I'm going to shoot a couple groups of my light accuracy load to see if it makes a diffrence. If not I'll probly due it to keep me busy.
 
Re: School me on neck turning

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Quicky06</div><div class="ubbcode-body">If not I'll probly do it to keep me busy. </div></div>
There are more enjoyable hobbies.
 
Re: School me on neck turning

Ea but this is cheaper than racing and it's too damn cold. Kite boarding requires wind which isn't in abundace here. So this looks like a good option lol
 
Re: School me on neck turning

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Quicky06</div><div class="ubbcode-body">Ea but this is cheaper than racing and it's too damn cold. Kite boarding requires wind which isn't in abundace here. So this looks like a good option lol </div></div>
One smart cookie here.

I've tried outside neck turning on two different brands of brass and noticed no difference...but I have to search for loads that my rifle is happy with, .75 MOA is as good as it gets, and FGMM shoots 1/8 MOA better than my best reloads without the cases being turned. Those cases *are* a tiny bit thicker on one side than the other.
 
Re: School me on neck turning

one thing that i learned was that it just needs a little dusting with a no turn chamber,i have abandoned this technique for the last couple of yrs.when i mentioned dusting sometimes the neck wouldn't even get a full cut all the way around,maybe half or 3/4 of the od of the neck would be shiny from the cut and the rest of the neck would be untouched.
 
Re: School me on neck turning

With a factory chamber, turn the minimum amount to get full cleanup.

The Pumpkin turner is the only one to get if you plan on turning any quantity of brass. I have turned several hundred in a few hours - FAR faster than other types of cutters with same or better accuracy.

I use a collet in my Bridgeport mill to turn the cases, but any power turner will make this much quicker and enjoyable.

Mike
 
Re: School me on neck turning

I use my forster trimmer with the power drill adapter and the outside neck turner adapater too turn my necks. I make 6mm ppc brass from 7.62X39 brass and it's a MUST too turn the necks. I sell alot of this brass.
 
Re: School me on neck turning

Didn't find the old post but here are a couple of targets i shot with winchester cases. They were all identical round in weight and prep other than I turned the necks on one set of cases. The rifle is a bone stock Savage 10FCP other than a trigger change. It was new brass never fired and as I said every thing was identical and from the same lot numbers....1/4" may not mean much to some but it does to me. Diamonds are 1/2" side to side.
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