RCBS Uniflow Powder measure question...

[Lone_Gunman]

I recently switched from the Lee Auto Disk to the RCBS Uniflow.

The Uniflow works great, but I had been using the Lee powder-thru-expander die with the Auto Disk.

Is there a way to set up the Uniflow so I can use the powder-thru-expander die? Otherwise, I will have to flare my case mouths as a seperate step on the turret.

How do you flare your case mouths when using the Uniflow?

 

[spencerhut]

I do it as a separate step on my progressive. The case activated linkage on the Uniflow needs to be in contact with the case as you raise the ram to dispense powder. Don't see why you couldn't use it if you have a free station on your turret.

Link to the case activated linkage:
http://www.midwayusa.com/eproductpage.exe/showproduct?saleitemid=802477

 

[armoredman]

Never mind, then.

 

[Lone_Gunman]

I don't think I explained my set up well enough.

I am using a Lee 4 Hole Turret Press.

At the first station, I resize, deprime, and reprime.

At the second station, I have previously been flaring the case mouth and then using the Lee Pro Auto Disk powder-through-the-expander set up to drop the powder charge. This is a case activated powder measure. I have switched to an RCBS Uniflow powder measure because I did not think the Auto-Disk was consistent enough to suit me. Now That I am using the Uniflow in the turret though, I can't use the powder through the expander die.

At the third station, I seat the bullets.

At the fourth station, I use the Lee factory crimp die.

So that uses up all four holes. I can set things up a little differently, and put the expander die in before the Uniflow, and shift everything down one hole, but that means I will have to take the Lee factory crimp die and just crimp everything later as a seperate process. I would like to avoid that if possible.

 

[DaveInFloweryBranchGA]

Buy a Hornady case activated powder drop with expander and you'll be good to go on using the RCBS Uniflow with case expansion. That said, there's no reason with pistol powders the Pro Auto Disk won't provide more than enough accuracy loading pistol powders. What powder are you using?

Dave

 

[Lone_Gunman]

Dave, I bought the Uniflow to use for 223 and 308, but decided to give it a try with 45 ACP also. Overall I like it better than the Auto-Disk, and was hoping to use it for everything.

 

[DaveInFloweryBranchGA]

LG,

To use the Uniflow with the setup you're describing, you'll need a Hornady CAPD and to make it convenient, a powder die base for each turret if you want convenience. I think you'll come out a bit cheaper doing it that way over all though, as the powder die bases are 14 bucks each vs. 30 for a Lee Pro Auto Disk.

But for pistol you'll have to buy an expander insert if you want to expand and drop powder in one step. The inserts are around 8 bucks each.

If you already have a Pro Auto Disk, I think I'd stick with it for pistol, as the practical accuracy difference, if any, won't show up in pistol rounds that I've been able to tell and I've compared the two measures. I own and use both on my Lee Classic Turret.

Regards,

Dave