I am bringing back this thread as I have a couple questions for you guys shooting 200 accubonds and retumbo...I took out my buddies 300 RUM that I am doing load work for and shot today to break her in. I only loaded H1000 today as it seems to have some good recommendations. I didn't play much with seating depths, just loaded to max length that would still fit and feed in magazine (3.650) and loaded rounds at 90, 90.5, 91, 91.5....The 90 grain group produced a .94" group at a 3070 FPS average....The rest of the loads all opened up and averaged 1.5-2.5" maxing out at 3200 FPS....Need to do better than this considering the quality of rifle, optics, componets, ect.
Sooooo....it seems Retumbo and the 200 grain accubonds are very popular and successful combo for many. My question is were do I start? The Nosler manual 8 shows a max load of 91.5 grains at 3070 FPS (24" barrel)...Yet many are saying loadings in the 94-95.6 grains are there go to loads....Is the manual a little to cautious? Are these 94-95 grain loads super hot?
My goal is to have the 200 grain accubonds shooting tight clusters in the 3100 FPS range - I would be happy with that at with a 26" tube - shouldn't be too much hassel. On a side note, I do believe the rifle has a pretty standard if not touch tight chamber as the rifle was showing slight pressure at 91.5 of H1000 and the nosler max shows 92????
