neck bushing die

[perazzisc3]

when neck sizing how far down the neck should be sized.
set up my redding bushing die and can only size half way down
the neck.half way down the neck to the shoulder is not sized.
should the entire neck to the shoulder be sized??if so where did i go wrong in setting up the die??

 

[230grRN]

Re: neck bushing die

The Redding Type S dies are built that way on purpose and will only allow the bushing to size about 2/3 of the neck give or take a bit. Sounds like you set up the die correctly.

The idea behind the design is that it will give better bullet to bore/throat alignment if the back part of the neck is left closer to actual neck diameter of the actual chamber neck, rather than sized back down to minimum specs.

 

[FLIGHT762]

Re: neck bushing die

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: perazzisc3</div><div class="ubbcode-body">when neck sizing how far down the neck should be sized.
set up my redding bushing die and can only size half way down
the neck.half way down the neck to the shoulder is not sized.
should the entire neck to the shoulder be sized??if so where did i go wrong in setting up the die?? </div></div>

You may have adjusted the die incorrectly. Unscrew the uppermost decapping rod assembly lock ring, almost to the top of the decapping rod assembly to get it out of the way. Take the decapping rod assembly out of the die and Drop the S bushing into the die and then screw in the decapping assembly all the way down until you hit the bushing with the rod assembly, then unscrew the decapping assembly about 1/16th of a turn to let the bushing "Float". Now screw the lock ring down to secure the decapping rod assembly.

You can take the die out of the press and shake the die. You should hear the bushing rattle slightly. This should size the neck to about within .030" from the bottom of the neck.

If you wish to resize the neck less, you can unscrew the decapping assembly as needed. A 360º counter clockwise turn will size the neck about .080" less with each 360º C.C. turn.

 

[perazzisc3]

Re: neck bushing die

thanks i will give it a try!!!

 

[Clark]

Re: neck bushing die

Set up a controlled experiment to compare the concentricity of ammo produced by an "S" die vs a FL die with honed out neck or a Lee collet neck die.
You will likely find the "S" die is not as good.
No big deal in a custom tight neck chamber rifle and with turned neck brass, but in factory chambered rifles with SAAMI sloppy chamber necks and big neck thickness runout in the brass, the difference is important.

1) A floating bushing will float toward the thick side of the neck, and thus bend the neck off center.
2) Factory chambers need the bushing to make big changes in neck size to be able to hold a bullet.

Those two problems together exacerbate eccentricity.