What Does 223 loads with imr 3031 Mean?
79lb of recoil 270gr load truly going to underperform an average Federal Trophy Bonded Sledgehammer at 300gr and 2440fps that places out 35lbs of recoil by *THAT* Significantly?
3031 will do the job, however it's a pretty quick powder for that software. I would not waste my time seeking to produce