I have a lot of Retumbo powder for my 375 Chey Tac and am about to start load development on a 338 LM Savage I just picked up with a 1:9 twist. I would like to hear about specific experiences and load testing with Retumbo in this caliber and if there was a consensus (thats usually hard to find around here I know) on that powder and 250gr vs 300gr projectiles.
With the 9 twist I can go either way on weight and a drop chart doesn't seem to lean toward one or the other that much.
I would like to get some feedback on velocities and group consistency experience with Retumbo.
Thanks for the input.
With the 9 twist I can go either way on weight and a drop chart doesn't seem to lean toward one or the other that much.
I would like to get some feedback on velocities and group consistency experience with Retumbo.
Thanks for the input.