I've had pretty good success shooting a 139gn SST out of our 7mm-08's. I'd like to work on developing a load for the 154gn SST. Looking at the ballistic data though it doesn't seem like I'm gaining a lot by jumping up in bullet grain size. With the 154gn I lose velocity, and with this loss the added energy I would have gained actually pretty much evens out with the same numbers I get from a faster 139gn bullet. I am somewhat new at reloading, but I am trying to determine if I will actually have any advantages with using the 154gn bullet, or maybe I should just stick to the 139gn. Thanks for any comments or suggestions.