Originally Posted by jrsolocam
I shoot the 230's in my 300 RUM with H1000. I hadn't really thought about them in the Dakota. Maybe I should. Is R33 supposed to be more temp stable than the other Reloader powders?
Not really much data out on 33 temp stability yet but it is producing very good velocities. RL17 and RL33 are a different chemistry than the other Reloader powders and it seems 17 is a bit sensitive to temps but maybe not as much as 22 and 25. I have read numerous reports of 50 - 150 fps more velocity than Retumbo. It is a slower powder than Retumbo but also more dense so you can pack more in.
From what I'm reading, 33 doesn't quite fill the 300 RUM case pushing the 230's. Based on that, I think the 300 Dakota is a good candidate for 33 pushing the 230's It might be a tad fast for the Dalokta, but if you got say a 101% with moderate pressure and good velocity I would think it would be a good thing. This all depends on hoe deep you seat your bullet.
My thinking on temp stable powders is there is no such thing as a completely temp stable powder. Some are more stable than others so adjustment have to made when temps change. How much and how often are other considerations but if a powder that filled my case was a little more sensitive to temps, than a powder that only filled 90% of my case, I might go with the full load vs the 90% load as long as accuracy was good. Accuracy would be trump consideration.