Lee Precision Reloading Undersize Sizing 9mm Die Set, Silver, Small (90313)

Perfect. Just what I needed for a tight chamber.

I use this for reloading brass that was used in a Glock and some other guns. Works 100% of the time and it's easy to setup if you have a Hornady Lock N Load. I call it my "brass de-Glocker". Since using this, I've had zero malfunctions.

The Lee 3mm undersized sizing die for full length sizing. Use these dies if you want to produce factory-dimensioned ammo that reliably fits and feeds in any gun. They are the first choice for semi-auto actions. Full-length sizing is a must if you are reloading for more than one firearm or reloading cases that were fired in others firearms. They are a quality die for the money and performance of reloaded ammunition.

I was using Lyman dies to reload my 9mm rounds and the cases would not fir in the case gauge or gun barrel due to a wide spot at the base of the shell., This solved that issue perfectly. I don't expect any problems going forward. I couldn't be happier with this sizing die.

I have several match chambered 9mm that had issues with standard sizing die sized cases. Switched to this one and 1500 rounds later had no isssues.

Let me say this. It's a great die but.... If you are going to use it with a Dillon RL1100 you will need to put the nut on the bottom not on the top of the tool head since the Die is too short. With that said, if you add any lighting system like I did on the bottom of the tool head, you will not be able to put the nut on the bottom and there is really not enough threads keep it locked. I have to keep checking it. As for the decap pin...you NEED TO REALLY TIGHTEN IT to keep it from slipping on a tough primmer to be decaped. As mentioned its nice, just too short for the RL1100 tool head.

I resized 50 pieces of brass and loaded them. Every single piece chamber checked in the tight chambered barrel in question. Before with the other sizing die I was using 10 to 15 rounds would not chamber check. Thanks Lee😁

Didn't work at all for me. ten headstamps, ten fails to chamber. Stops right on the ridge the die left.No adjustment on the die will work. Tried in three different Lee presses, no go.Something about too good to be true comes to mind.