It's too slow for even the heaviest bullets in the 308 if you want high MV's, but would be ok with 180gr and heavier bullets. You'd be using a full case with all bullet types
In general though, just because a powder doesn't (or doesn't yet) have any load data published, doesn't mean it can't be used with other bullet weights or even cartridges. This is a relatively new powder and load testing is slow and expensive - more loads will come along. The other thing is that Burn Rate Tables are not absolute, i.e. a powder's burn rate can switch several places with several other powders depending on the cartridge-bullet combination in use, and tables do not show "speed" just "sequence", i.e. #80, 81 and 82 might be practically interchangeable, while a big jump occurs at #83. For example, I have found Superformance to be most defintely faster than H4831SC in the 7X57, pretty close to H4350 in fact, and so I have chosen to start with H4350 data for trying out Superformance where load data does not exist.
Do this:
- load up five with a max H4350 load;
- load up five more with a H4831 starting load
- load up five more with Superformance with a load between that amount used for H4350 and H4831;
- compare the average MV's.
This will tell you where Superformance falls with respect to H4350 and H4831 for that cartridge-bullet combination.
