Neck turning

[schnyd112]

Between the neck and the mandrel there is almost zero clearance. As in, there is no way to measure that. I expand with a k&m expander built for this mandrel.

Yeah i sped up a little, and fed slower. Just trying to get it consistent now. I have some dummies loaded up for Jack, but am still trying to get consistency from case to case. It seems to be easier to mess up the less I cut, the ones there are .290 diameter loaded which is not enough. I have it now cutting to .014, but I am back to rough cuts. I am going to go look at a new power tool today, mine may just have too much runout. It has a pretty good wobble to it. I will bring cases with me, and show you what is going on. This weekend got busy in a hurry, landlord wanted to come by, birthday party tomorrow, and we are watching my girlfriends sisters poodle. He's a little punk.

[LongRange]

If he has .014 to .014.5 between the case and the mandrell this is a problem. It should be less than .001

can you explain a little more I'm not understanding the .001?


Between the neck and the mandrel there is almost zero clearance. As in, there is no way to measure that. I expand with a k&m expander built for this mandrel.

Yeah i sped up a little, and fed slower. Just trying to get it consistent now. I have some dummies loaded up for Jack, but am still trying to get consistency from case to case. It seems to be easier to mess up the less I cut, the ones there are .290 diameter loaded which is not enough. I have it now cutting to .014, but I am back to rough cuts. I am going to go look at a new power tool today, mine may just have too much runout. It has a pretty good wobble to it. I will bring cases with me, and show you what is going on. This weekend got busy in a hurry, landlord wanted to come by, birthday party tomorrow, and we are watching my girlfriends sisters poodle. He's a little punk.

.292 is about a small as you want your loaded necks...and something funny is going on because I turn mine with one pass and they come out clean...bring your tool next week to I'd like to look at it.

a punk poodle lol...worse than baby sitting a kid.

[LongRange]

If he has .014 to .014.5 between the case and the mandrell this is a problem. It should be less than .001

Never mind I get what your saying now...I was thinking the blade and the mandrel.

[Robinhood]

I knew that good buddy. I just wanted you to know I was paying attention! Have a good weekend and may the sun always shine and the breeze be light.

[LongRange]

Hey B measure your expander and your mandrel when you get a chance...mine is .264 and .263 Robinhood may be on to something here.

[Robinhood]

Between the neck and the mandrel there is almost zero clearance. As in, there is no way to measure that.

If you have some Starret small hole gauges and a 0-1" Micrometer you can.

[LongRange]

I knew that good buddy. I just wanted you to know I was paying attention! Have a good weekend and may the sun always shine and the breeze be light.

Lol thanks RH same to you.

[Robinhood]

Schnyd, What did you change from bottom to top in post 18?

[schnyd112]

I got her licked now. I don't know what I was doing wrong, but I put it away and came back to it this evening. These are ones that came out rough, so I ran them through again and cut deeper into the shoulder. These are not keepers, cut too thin and a little rough but I've got it now. Just need to check with you LR about how deep to cut. I was somehow making it way harder than it needed to be.

http://i63.tinypic.com/29pargg.jpg

[schnyd112]

Speed of the drill. That was about it, just went more rpms which made it easier to keep consistent. The far right was also the first I did that night.

[LongRange]

See now those look good...I'd still like to see the cut into the shoulder in person...it's pretty simple once you get the tool adjusted...they come out super clean at high speeds but the mandrel starts getting warm and causes issues but I think you got it now.

[sharpshooter]

2 words....cutting lube. Never cut them dry, use lube on the mandrel and on the outside of the neck. Imperial sizing lube works fine.

[Bunky-Shooter]

I have to agree with LongRange !! Turning at a slower rate will make you necks come out much better. I have successfully turned down military 7.62 to shoot in my 260. Had to make 2 passes to get
where i wanted the necks. Military brass is thicker !! I use a Lee #2 casing holder and lock stud using a Bosch PS20 pocket driver to cut down my brass. The Pocket driver will only turn 400 rpm max (variable speed) so its a great tool for cutting down necks. My cutting tool is a Hornady cutter !! After cutting I lightly polish using 0000 steel wool. Brass looks nice at this point.. Good luck !!!