9MMX19 reloading

mrerick · 01-01-2019, 08:34 PM

Don't forget that 9mm Luger headspaces on the case mouth. Upon insertion into the chamber, it stops when the mouth reaches the correct depth against a shoulder step in the chamber.

If you taper too much, it might either miss the shoulder or cant against it at a slight angle if the chamber is cut loose.

This is one reason I don't overwork the mouth of a 9mm case by "belling" it large for bullet insertion. Just a slight amount is enough to center the bullet to be pressed in properly.

01-01-2019, 08:34 PM	#11
mrerick Super Moderator - Patron LugerForum Life Patron Join Date: Dec 2009 Location: Eastern North Carolina, USA Posts: 3,920 Thanks: 1,377 Thanked 3,135 Times in 1,518 Posts	Don't forget that 9mm Luger headspaces on the case mouth. Upon insertion into the chamber, it stops when the mouth reaches the correct depth against a shoulder step in the chamber. If you taper too much, it might either miss the shoulder or cant against it at a slight angle if the chamber is cut loose. This is one reason I don't overwork the mouth of a 9mm case by "belling" it large for bullet insertion. Just a slight amount is enough to center the bullet to be pressed in properly. __________________ Igitur si vis pacem, para bellum - - Therefore if you want peace, prepare for war.