I am using 9mm 124grain rn extreme bullets using Hodgdon tightgroup. I go the Hodgdon reloading data center and all it gives me is for Berry's Bullets HBRN TP. It suggests 3.6 to 4.1. I don't believe extreme uses a hollow base. Is it safe to use that loading data? Where is a good place to get the info I need?
loading data e-xtreme bullets Hodgdon tightgroup
- Thread starter mrdaputer
- Start date
If two bullets are identical except for the hollow base, as is the case with 38 cal 148 grain hollow base and bevel base wadcutters, and are loaded to the same COL (flush with the case mouth for the wadcutters) it makes no difference in powder space. The density of lead is the same, so if you remove some from the center of the base and put it on the outside of the base, you have simply moved it around, but not changed the amount of space.
If you use different nose shapes or COL's or bullets of different materials, then all bets are off.
If you use different nose shapes or COL's or bullets of different materials, then all bets are off.
I just learned something new today.