FastDam
Member
I have a wWinchester model 70 chambered in. 300 Remington Ultra Magnum. I just started to handload and I have started working up a bowler load for 200a grain accubonds straight out of their book. I don't know my barrel twist rate and I don't know where to find it. Does anyone else know more about this gun. I don't think it was a standard factory caliber for model 70. Mine is blue/wood with a 26 inch taper barrel. This is my bear and elk rig.
