Home Forums Reloading Big Game Rifles Forster Coax

For the guys using a Coax, how much tension to you put on the set screw that locks in the die? I've been playing with it some and can't really figure out where it should be. Thanks,
JL

I don't use the set screw at all anymore. I have found that allowing the die to "float" naturally results in the straightest ammo. My coax is an ancient Bonanza, before they were acquired by Forster, but I imagine that the tooling is the same.

Using your concentricity gauge, you might measure your ammo with--and without--set screw tension and make your own decision.

Don't use the set screw either.

I always use Forster lock rings and set the tension just enough to keep the dies from sliding out on it's own.Rick.

I tighten the screws on the rings down so that they don't move. One of the advantages of the Co-Ax press is that it's so quick to change out dies. If the lock rings are loose you can lose your carefully set up die settings. Why setup your seating die to seat bullets within .005 (or whatever) of the lands if you move the settings 10 times that much with a loose lock ring?

Concentricity is far more effected by how you set up the dies, especially the decapping/expander rod than it is by how loose the lock rings are.

The press set screw I set just tight enough so that the dies don't fall out, just like others have mentioned...................dj

So do I. The Hornady pinch rings also work well. Lyman also came out with some that I understand work as well. Use of the pinch rings insures that the die and the flat of the ring can be a perfect 90� to insure concentricty. I've seen rings that are canted on the die; usually reversing them takes care of it. Set screws will surely cant the ring if screwed tightly, or at least it will be a crap shoot.

So, there you have it!

Thanks very much for the help.

Yep