1. Most probable cause is lack of lube, or die adjusted wrong. Primer should have been pushed out here

2. Collet neck sizing not required in addition to full length sizing. You would collet neck size instead of full length size, on brass previously shot in your rifle. No lube required for this setup

3. Cool

4. You mean IMR 4064?

5. Sometimes some bullets don't fit just right into the seating die. It happens, especially seems true with longer pointy ones. You might have to polish or modify the part of the seater die that actually contacts the bullet. Are there any marks on the bullet that show where it was getting stuck? Search Youtube, you will fine something to guide you on this.

Don't be embarrassed or shy about asking for help. Messing something up in this hobby can have bad consequences