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Neck tension on collett die

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Old 12-24-2007, 01:04 PM
Junior Member
Join Date: Nov 2007
Posts: 21
Neck tension on collett die

I have adjusted my collett die the way Lee says. And then moved the die up and down . and I am not getting very much tension to hold the bullett. My 30'06 will hold a bullett but not really snug. M 25'06 will not hold at all. I thought ABinok wrote once about different mandrels or collets but I can't recall. Jerry Teo wrote about 4-5 thousands tension to hold the bullet during recoil but I am not getting this. Have a great Christmas and great New Year. Shawn
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Old 12-24-2007, 02:21 PM
Gold Member
Join Date: Dec 2004
Location: Black Hills,South Dakota
Posts: 661
Not sure on the Lee neck die,but if its like the redding bushing dies,the dies dont come with the bushings,you have to buy them individually.
The Constitution shall never be construed to prevent the people of the United States who are peaceable citizens from keeping their own arms -Samuel Adams
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Old 12-24-2007, 02:31 PM
Silver Member
Join Date: Jun 2006
Location: buffalo, OK
Posts: 354
I chucked my mine in a drill and used oiled up sandpaper to take it down about .001 to give more tension. If i want more tension than .002 I use my redding die. I think if you took more than .001 off a lee die your going to have concentricity problems ( or however the hell you spell it)
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Old 12-24-2007, 08:00 PM
Platinum Member
Join Date: Jun 2001
Location: Potomac River
Posts: 5,057
Is your brass work hardened and in need of annealing?
The Smokin Fur Rifle Club
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Old 12-24-2007, 08:14 PM
Silver Member
Join Date: Nov 2005
Location: south central pa
Posts: 215
how much pressure are you using on your press handle?it says in the instructions it takes 25 pounds of force for die to work.i have lee collet dies for 300wm and 30-06.set up by the instuctions they work fine.jason
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Old 12-24-2007, 09:07 PM
Gold Member
Join Date: Aug 2005
Location: Mouth of Hobble Crk Canyon, Utah
Posts: 597
Call Lee


You'll need to call Lee directly to order the smaller sized mandrels @ about $4.00 each plus shipping. The standard "decap mandrel" is sized .3055" for the 30-06. You'll want something like .3045". I have several, 3045" and 3035".

Lee Precision,Inc. Serving You Since 1958
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Old 12-24-2007, 11:26 PM
Junior Member
Join Date: Nov 2007
Posts: 21
My brass is once fired. I don't know about annealing. I readjusted everything and put more pressure and am getting about .003-.004 on the inside .308-10 before starting .304-5 after this is measured with a dial caliper on the inside of mouth. I measured my 243 that I use a standard redding nck sizer on and I get about .005 when measured the same way. It just seems a little looser on the collett dies. but the numbers are right.

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