Re: Need load for 7rem mag With imr7828 &160 ab?
Start around 61-62g. Max should be around 64-65g according to Nolsers #5 manual. Velocity should be a tad over 3000fps on the top end.
I had good luck with 61g RL-22 and the 160g AB. .275" 3 shot group at 100 yards, kinda slow though at 2850fps.