K&M expander madrel use with Forster Co-Ax

[Vandy321]

K&M gives the ability to custom size models for expand out case necks. However, it doesnt appear that the press adapter for their mandrels will mount in a forster Co-Ax

I see sinclair makes an expander die, but only really offers a .001 under expand mandrel and a .002 under turning madrel.

K&M was the only one I could find that offers custom sized expander madrel.

Am I over thinking this? Should I instead just use the sinclair to expand (.001) and then turn on my K&M neck turn mandrel (.002 under). And then run through a redding bushing neck size die to set neck tension (no expander ball)? That seems like it may be the easier with the current setup I have. But I see alot of folks swear by using an expander mandrel to set final neck tension instead of a bushing die.

 

[reloaderguy]

21st Century Shooting makes custom mandrels and die body that will fit in your CoAx.

http://www.xxicsi.com/expander-mandrels.html

 

[Vandy321]

That solves that, thanks!

 

[Dusty Stevens]

Do a search on here for porter precision products expander die. $3 each size in .0001 increments or smaller

 

[eas1949]

I'm going to use a pin gage in an RCBS bullet puller

Eric

 

[BenPerfected]

If you are using expander mandrels often, this small Harrell's press is much faster than the Forester Coax. You deserve this for the 4th of July.

 

[memilanuk]

K&M has been selling the necessary part for years...

 

[David247]

Do a search on here for porter precision products expander die. $3 each size in .0001 increments or smaller

I'll second that. If you want quality, try one of these!!!