INGWE, what seating depth are you doing. I just spent the day shooting 68grain, 70 grain, and 72 grain Retumbo, c.o.a.l was 3.390. I found so far that 70grain shot the best. It was 1" group at 200yrds. I need to now fine tune it to get down to 1/2 group. I am open to trying other loads to see what works best.