And how many here have tested a Forster full length die with a expander vs using a expander die or a Lee Collet die for neck runout.
I have tested all three methods and prefer using Forster full length dies with their high mounted floating expander. And just because you use a expander die doesn't mean the case neck will have less neck runout than using a Forster die.
Below the Forster die with its high mounted floating expander. The case neck is held and centered in the neck of the die when the expander enters the case neck.
Below I installed a Forster expander and spindle assembly on my Redding .243 die and reduced neck runout. Many people forget to lube the inside of the case neck and polish the expander.
Below a closeup macro photo of a RCBS expander, and I would never use a expander like this until it was polished smooth.
Do this to start. I have the exact same die set that you're using. I use a case neck brush sprinkled with dry mica to help the expander ball go through the neck with very little force. Try this and see if it works. I've loaded tons of cartridges and am very happy with the results. If you find that you're not happy with the results, then move on to something more involved.
I apply Imperial dry case mouth lube before applying Hornady Unique case lube to the body. It takes a little bit longer than using spray on lube, but I see better results with my bolt action reloads. If I find the expander ball dragging too much on the return stroke, I increase the amount of dry case mouth lube applied.
I segregate brass for bolt action reloads and neck size brass after the first firing. I only full length resize if the brass is not concentric.
Last edited by T2C; 05-21-20 at 14:01.
Train 2 Win
This is me as well. Been doing it that way for 40 years.On 5.56 I use One Shot spray lube (if you use it correctly, it WILL work every time). I make sure a little gets sprayed inside the case necks, and I've never had a problem with either sizing or expanding, using a plain old RCBS set.
Last edited by Delta-3; 05-22-20 at 00:57.
Take a Good Look at Mighty Armory's Resizing Die. Here is a video of Wayne demo-ing his 223 resizing die. I am going to pick up a 223, 308 and his new 30-06 resizing die from him. https://www.youtube.com/watch?v=Th7RnGljXv8
Sear youtube for more Mighty Armory Videos
Last edited by md66948; 06-16-20 at 06:09.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
I use an expander ball so that the neck internal diameter is consistent regardless of the case wall thickness at the neck. I've never used a Lee collet neck die, but from what I've seen it does the same thing in a different manner.
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