This all the powders I tested to see which one worked best in my Rifle. I settled on Retumbo, it gave highest velocity and excellent groups and no pressure signs. took a lot of work but I had fun working up the right load for hunting season.
1. IMR 7828 SSC
65.5
CCI 250 LRM
Winchester brass
OAL 3.30
Group .426
Velocity 3,020 fps
2. H4831
Winchester Brass
3.300
Remington 9 1/2M
1 63 grains 3,052
*3. US869
Winchester Bras
3.303
Remington 9 1/2 M
77 grains
3,100 fps
Group .496
4. H1000
Winchester Brass
Federal 215m
Oal 3.30
1. 70.5 Grains
3,150 fps
5. Retumbo BC. 612 G7 BC. 313
Winchester brass
Federal 215M
OAL 3.300
71.5 grains 3,201 fps*
3,215 fps no pressure
Group .185"
6. MagPro
Winchester brass
WLRM
67 grains
OAL 3.300
Velocity 2,922fps
7. Ramshot Magnum
Winchester Brass
WLRM
68.5 grains
Velocity 2,976 fps