I supplied Alliant the bullet, bullet type , case , primer, revolver, barrel length and the caliber (41 magnum)
And this was their reply .. So much for ask the expert ..
Load data is based on the bullet and its design, not the powder alone.
We suggest that you contact the manufacturer for data on their bullet.
Thanks,
Shoot Straight
DuaneVB
CCI/Speer/Alliant
2299 Snake River Ave.
Lewiston, ID