New 9mm sizing and expanding die coming

[338lapua]

FW Arms who I buy a few parts from for my Dillon presses has a new carbide sizer die for 9mm as well as a carbide expander for 9mm coming out. This sizing die pretty much eliminates the dillon case bulge issue. I have a test set right now and they are amazing. Out of 5000 cases that we case gauged 4972 fully gauged after swaging and priming.

 

[338lapua]

Yeah I know I crimp heavy but I shoot a lot of subguns and this way they dont push the bullet back after hitting the feed ramp.

 

[338lapua]

The FW Arns sizing die next to the Dillon 9mm sizing die. It just sizes but I believe he has a die that sizes and deprimes but if you process this is the best option. I find that making every part of the brass processing its own process you get the best quality. As you can see there a slight bevel and I have had zero issues running up to 3500 cases a hour. Right now I am swaging, priming and resizing in one pass. To get best results you need a expander die that they also make the opens the case the right amount for bullet seating and at 1500 a hour which I what I load at it produces the bulge free ammo.

 

[338lapua]

The 9mm carbide sizer next to the carbide expander. If I am processing, swaging and priming I size and expand in the last two stations to keep the fine dust from sizing from getting into the priming slide bar.

 

[338lapua]

The expander die is just as important as the sizing die in my opinion. They work together to not under size the outside of the case or oversize the insize but give you enough flare to seat a bullet even with a bullet feeder.

 

[crimpgod]

I'm not seeing any benefits to that, unless you are running some kind of aftermarket shellplate where the normal dies can't clear.

 

[338lapua]

I'm not seeing any benefits to that, unless you are running some kind of aftermarket shellplate where the normal dies can't clear.

I run FW Arms shell plates, you can use any die set with them. I run FW plates as the geometry is slightly off on the Dillon plates and the FW plates let me run at up to 3K a hour and sometimes 3500 a hour on a Dillon press.

Processing and priming before loading solves a ton of issues especially if you are a high volume shooter. Sizing and pre expanding in the last two stations after priming keeps the fine dust that comes from sizing from moving to the primer slide and jamming it up.

 

[bill460]

That's a very heavy crimp. Are you having any issues with the loaded rounds chambering too deeply?

 

[Old Jeff H]

Is their expander a flare, or a step like the Lyman M Die?

 

[338lapua]

That's a very heavy crimp. Are you having any issues with the loaded rounds chambering too deeply?

The heavy crimp is for rifle loads, I use a little less of pistol. No issue at all. They all still git the same spot on the target.

 

[338lapua]

Is their expander a flare, or a step like the Lyman M Die?

Expander opens case up to .356 for the bullet feeder. The bullets drop right in and usually stay upright going to seating station. running at 2K per hour.