Re: Lee collet dies
imo , it doesn’t matter how far you turn the die in, as long as your not toggling over – the mandrel and collet prevent you from doing anything funky, so when you have the lever depressed to the point it gets hard to go further, that’s when the mandrel and collet engage the neck and start sizing it..
IMO I really have no problem with the instructions, they work just fine, its just a matter of getting a feeling of the pressure – I don’t go gorilla on it, just use firm elbow pressure and you re there.. its really not that hard to repeat. Typically with my rockchucker I set die up to touch, then turn in 1 ¼ to 1 ½ more turns and this works great. No lube, no muss no fuss. My neck diameters are consistent to within under 1/1000th . I usually rotate the case and size again for uniformity.
If you want firmer neck tension you can send for a custom mandrel, or even buff down the one you have (no more then .001).