For TAC this is the information I got directly from Ramshot.
We suggest the following.
Caliber: .358 Winchester.
Barrel length: 24”
Powder: Ramshot – TAC®.
Bullet weight: 180 grains.
Start load: 48.0grains (2250 – 2350 Fps)
Maximum load: 53.0grains (2575 – 2675 Fps) LD ca 110%.
Bullet weight: 200 grains.
Start load: 43.0grains (2300 – 2350 Fps)
Maximum load: 48.0grains (2450 – 2550 Fps) LD ca 108%.
Bullet weight: 225 grains.
Start load: 41.4 grains (2000 – 2100 Fps)
Maximum load: 46.0grains (2300 – 2400 Fps) LD ca 106%.
Bullet weight: 250 grains.
Start load: 39.0grains (1850 – 1950 Fps)
Maximum load: 44.0grains (2200 – 2300 Fps). LD ca 104%.
NOTES:
It’ important to note that SAFETY is our prime concern therefore we strongly recommend.
1. ALWAYS BEGIN LOADING AT THE RECOMMENDED MINIMUM “START” LOAD and develop loads in 2% increments towards the MAXIMUM load.
2. If possible, measure the velocity and correlate with our data.
And for Hodgdon Reloading Data Center
http://data.hodgdon.com/main_menu.asp