He's asking about rings for a Co-ax press, on which the quick change system has dies sliding into a slot sideways, retained only by the lock ring. So, they need to be round rather than hex and have some way of locking to the nut the die threads themselves, as they float in the press and are not tightened down to it.
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Right. And Forster sells cross-bolt lock rings for theirs, too. I'm only referencing Kdub's use of Lee lock rings which have just the rubber O-ring in a recess on one side to allow them to be tightened down by hand.
Since the last post, I went down to the bench to try it out. Kdub's right. The flats on the Lee rings are the right width for the Forster slot and the rubber does compress, so it needs to be greased to slip in. The rubber rubs the die threads enough on the inside of the ring I tried firmly enough that the concern I expressed about the lock ring rotating out of place is excessive. As long as the die is pulled straight in and out and set in the Lee die holder, it probably won't move. A registration mark on top with a Sharpie would verify that.
So, to sum up, it simply never occurred to me to try this. Learned something new (to me) from Special K today.
Since the last post, I went down to the bench to try it out. Kdub's right. The flats on the Lee rings are the right width for the Forster slot and the rubber does compress, so it needs to be greased to slip in. The rubber rubs the die threads enough on the inside of the ring I tried firmly enough that the concern I expressed about the lock ring rotating out of place is excessive. As long as the die is pulled straight in and out and set in the Lee die holder, it probably won't move. A registration mark on top with a Sharpie would verify that.
So, to sum up, it simply never occurred to me to try this. Learned something new (to me) from Special K today.
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