Thread: Seating die for 77gr TMK

Buy another seating die

Find a loaded round with a perfect projectile in it that’s also concentric

Put release agent on projectile

Add a small amount of bedding compound ( Devcon 10110) into the seating stem and lower the press ram until the stem sits on the projectile of the loaded round

Leave it there until set

You now have a seating stem that’s perfectly formed for that projectile type