180 Hunter Hammers and IMR4955

[Rusty85]

Anyone have any starting data for this combo in a 300 Win Mag? I feel there's better powder options out there but this is for a friend and he's wanting to try it so I told him I'd ask.

 

[JMW67]

I would start at 68gr. and go the normal Method of working up a load for Hammers I would think you would max out around 72.5-74grs.