johnandersonoutdoors
Member
- Joined
- Jul 6, 2012
- Messages
- 260
Speer Manual 13th edition
9mm 125grain lead round nose lists Unique range 4.1 to 4.5 grains (COL 1.130")
Alliant Powder Reloaders Guide (2000 edition)
9mm 125 grain lead lists a max charge of Unique at 6.0 grains (min COL 1.150")
I know any change in COL can mean increase in pressure and if you shorten COL then it makes sense that powder charge would need to go down. Speer manual lists a specific bullet and I do not know bullet that Alliant manual is referencing.
Still very surprised to see difference in max load of 4.5 versus 6.0.
What do you guys think?
9mm 125grain lead round nose lists Unique range 4.1 to 4.5 grains (COL 1.130")
Alliant Powder Reloaders Guide (2000 edition)
9mm 125 grain lead lists a max charge of Unique at 6.0 grains (min COL 1.150")
I know any change in COL can mean increase in pressure and if you shorten COL then it makes sense that powder charge would need to go down. Speer manual lists a specific bullet and I do not know bullet that Alliant manual is referencing.
Still very surprised to see difference in max load of 4.5 versus 6.0.
What do you guys think?