I'm going to assume you meant HS-6 and probably 124 grain bullets. You could load shorter (HS-6 tends to run better at higher pressures) but you definitely need a chronograph even more for safeties...
Type: Posts; User: flange
I'm going to assume you meant HS-6 and probably 124 grain bullets. You could load shorter (HS-6 tends to run better at higher pressures) but you definitely need a chronograph even more for safeties...
Some data here.
http://ww w.shootingtimes.com/reloading/reloading-heavy-bullets-in-9mm-luger/
not sure if it helps but maybe worth a look.