Video good, if you dont have a loaded round.
No crimp needed on match grade ammo. Proper neck tension is all thats needed.
When you have a few loaded rounds, measure the neck with a micrometer. Take the smallest measurement and buy a bushing .002" smaller for a bolt gun.. Autos , you want more neck tension, so buy a bushing .003" smaller. Start there, more bushings will be needed . I have 3.
When using different brands of brass that have different neck wall thickness, use the correct bushing.
Remember, on seating the bullets, neck should expand .002" minimum.
Above works best with neck turned brass.
If using non-turned necks, buy the Redding type S FL sizing bushing die. This die gives the options of using an expander or not. Select a bushing that lets you feel a slight drag, as the expander pulls thru the lubed necks. This is the best method when loading unturned necks, with a large variation in neck wall thickness.
- Or buy match grade brass and sort by neck wall thickness, using a tubing type micrometer and skip the expander.