how to setup LEE 9mm 4Die set on Forster Coax?

[p5200]

I watched the videos on LEE's website but, I guess they are using a LEE Press and am confused since I have the Forster Coax press. I set each die according to manual I think, but I used Forster lock rings to be able to lock the settings. Has anyone else setup this same die kit or another caliber on a Forster Coax press? If so, did you follow the manual that came with the die kit or use another method? All help will be appreciated as I want to have things adjusted right and for sure SAFE! Thanks!

 

[rcmodel]

No experiance setting dies in a Co-Ax, but it would be no different then setting dies in any other press.

Adjust each die to do it's function, lock the ring, and move on to the next die and adjust it.

rc

 

[p5200]

Thanks rcmodel, what confuses me on the video for the sizing die it says screw die down till it touches shell holder then, lower shell holder and screw the die in another 1/4 turn isn't that considered over camming? the directions with the die kit just say screw the die in till it makes contact with the shell holder and snug up lock ring but nothing about screwing it in another 1/4 turn? Thanks Again!

 

[rcmodel]

You for sure DO NOT want to screw down a 9mm carbide die an extra 1/4 turn.
It needs to just kiss the shell holder plates at full travel.
Going for cam over with a carbide die can break the carbide insert.

Cam over is considered necessay for bottle neck steel rifle dies to push the shoulder back where it came from with many normal presses.

But again, I don't know how much flex a Co-Ax has, but I doubt it has a 1/4 turn.

rc

 

[p5200]

That's what I was thinking I would be afraid of breaking a carbide die using the cam over method.

 

[BoKnows]

I run a Co-Ax with 9mm Lee Dies and i set it to touch the "shell plate" and then turn 1/8. There is some give to the press when you seat the case into the die. Otherwise the die does not completely size the case.

I set my dies according to the L.E. Wilson case gauge.

 

[p5200]

Is that 1/8" or turn?

 

[p5200]

Surely must mean 1/8".

 

[Vec]

I'm sure he meant an 1/8th of a turn. Reloading dies are 14 threads-per-inch so an 1/8 of a turn is a hair less than a .01". Just about enough to take up any tolerances in the press methinks.

 

[ranger335v]

"video for the sizing die it says screw die down till it touches shell holder then, lower shell holder and screw the die in another 1/4 turn isn't that considered over camming?"

Trying to 'adjust' dies by rote only gets us in the right ball park, it sure won't work any magic in set-up. No straight wall case needs to be jammed as far into a sizer as it can go anyway. You may easily leave a 1/16" - 1/8" gap between the shell holder and die for straight wall handgun cartridges.

"Cam -over" is a function of the lever/toggle block cam effect. It occurs when the toggle block rotates passed top-dead-center and the ram has started back down. Meaning cam-over happens when the lever is fully depressed whether a case or die is in there or not.

Turning a die 1/8 th of a turn moves it some 9 thousanths of an inch; by itself that's a massive change. In fact it's about half again the full min to max headspace range of most bottle neck cartridges. But the amount of stress change needed to accomplish what needs to be done varies according to each individual press, its linkage and the die/shell holder tolerances. Meaning even a more critical rifle FL sizer adjustment has to be done for the proper effect, it's never a preset adustment forever and ever, amen.

 

[A and O]

I have the Co-Ax and use only Lee Dies for my Pistol Calibers. I also use the Hornady Die Rings on them and get repeat workmanship by adjusting as above posted and having the set screws point in the same set for all of my dies. By that I mean when you look into the open section you can see the screw on the rings in the same place for all Dies. I also mark the Dies with a felt tip marker at preset/proven sets.

Over the years I've bought enough Dies for the different bullets that my Weapons seem to enjoy and have everything pretty much set up with only very slight changes being needed from lot to lot.

I try to take advantage of the simplicity of this Press and it works for me.

 

[Seedtick]

There is some good info in this thread. Check it out.

Shoulder Bumping

Seedtick

 

[p5200]

I use felt tip pens on my rifle dies and will mark the LEE set once I'm sure of each setting.

 

[JimKirk]

I've owned my Forster CoAx since early 1970's(mine is a Bonanza) ... I've used just about every brand dies made in mine ... except for Lee Carbide dies. It work as far as setup just like every other press(except for the die rings). I have no problems with RCBS, Redding, Lyman, Pacific, Hornady ... carbide dies. The only problem you may have ... is with really tall dies ... like the Redding Micrometer that stand really tall( my CoAx has the B2 yoke, which is shorter than the later B3 models).

 

[p5200]

I think I might have the Bonanza yoke but not sure is there a measurement I can take to determine? I've only had mine a couple years but, I guess it could always be old stock. I bought it at Cabela's.

 

[DM~]

I don't go by generic die setting directions, i set my dies in my CO-AX same as for my other presses. They are set to size the cartridge "properly" for the chamber it will be going in.

DM