Sigma9mm
September 21, 2011, 09:30 PM
folks,
I'm fairly new to reloading and have a question, I'm wanting to load 9mm, 147 g JHP in some military brass with winchester primers. Has anyone every used HP-38 powder to reload 147 grain JHP in 9mm if so how many grains ? I'm having trouble finding the exact data to use hp-38.
gamestalker
September 21, 2011, 10:24 PM
No HP38 data for a 147 gr. JHP in any of my books. It's too fast of burning for use with that heavy of bullet.
bds
September 21, 2011, 10:40 PM
HP-38 is same powder as W231. Maybe this will help.
Lyman #49 page 341.
147 gr Speer TMJ .355" OAL 1.115" W231 Start 3.5 gr 855 fps (23,000 CUP) - Max 4.1 gr 957 (27,500 CUP).
No HP38 data for a 147 gr. JHP in any of my books. It's too fast of burning for use with that heavy of bullet.
So why would Hodgdon publish load data (http://data.hodgdon.com/cartridge_load.asp) for Titegroup which is faster burning than W231/HP-38?
147 gr Hornady XTP Titegroup .355" OAL 1.100" Start 3.2 gr (855 fps) 22,500 CUP - Max 3.6 gr (929 fps) 27,500 CUP
1SOW
September 21, 2011, 10:59 PM
Sigma9mm,
The Lyman data given above shows an oal for a TMJ bullet, your JHP bullet will be a little shorter probably. Start LOW and work up.
