Hammers are generally viewed as one of the easiest projectiles to work up. Lots of threads on rockslide and hanmertime discussing it.I'm about to start doing more LD for my youngest son's 308, looking at going with 156 gr Hammer Hunters, I think I'm going to try 2000MR for those since I have about 9# of it and am down to about 3.5 or 4 lbs of CFE223. Looks like i should be able to get to 2800 or a little faster with either of them.
Michael558 here has killed 100 buffalo with raptor bullets that are similar to hammers and they are nothing short of devastating.