Lee Collet Dies?

I have several sets and swear by them. I always size twice - once and then again after rotating the cartridge 90 degrees.

I have bought some Custom Lee Collet Dies, but for 6.5mm cartridges for example, I just use an off-the-shelf 6.5 WSM F/L die to neck-size. Works well, but does work the cartridge neck much more than the Collett Die. That's a good reason to anneal.
 
I've only had good results with the collet dies but mostly with cast bullets. I turned the pin a few thou larger so the cast bullets had less trouble seating. Also I ground off the top 1/8" of the collet piece so when I sized the brass it left the mouth flared. 1 pull of the press handle and my brass was sized AND flared all in 1. Personally, I think they're great.
 
I have a few sets, but find that I don't use them anymore. They do load straight ammo (if you don't use the Lee seater) but after a few de-bulleted loads in the field and way too many early split necks I decided that it wasn't worth it. Besides, they didn't shoot any better. I can put up with a lot for better results and very little for nothing.
 
Great dies for the money but I find RCBS neck sizer more consistent (IF I can find one in caliber I need ).

When shooting cast bullets one thing to remember is to clean mandrel often.Leftover bullet lube likes to stick to it and prevent die from full closure.

Also Lee doesn't seem to regard burrs as a problem-I do.
 
I use them to uniform neck tension after sizing brass with different thicknesses.

Also use it on first station of my 650 loading toolhead for 223 to make sure primer hole is clean, and also makes sure neck is ok for bullet after tumbling.

I have used them before for my match ammo, but right now I prefer a FL die set for 2 mils bump.
 
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