Re: Rutumbo in a 300 Ultra
I have gotten ~3200fps thus far from 89gr of retumbo under a 216gr clinch river with groups in the .2"s (30" 1:10 PacNor select)
For the 200gr SMK,..88.0gr H1000 gave .25moa groupings as well at ~3100fps.
For the 165's,..I think your wayyyyyy tooooo sloooooww with retumbo or even RL25.
You try to get closer to the target,..and I keep trying to get further away.