I'm using norma brass which is very good but bloody expensive.Ive never tried anything lighter than 180 grain,I bought the rifle mainly for shooting pigs and figured that 180's would be best so stuck with them.They shoot sub inch and kill them all dead, i'm sure 150 grainers would be a great longrange flat shooting round.Ive got some nosler partions in 150 i may give them a try,If your going to load 150s i would choose a good quality bullet to avoid bullet break up.A s i said earlier a good round it seems to be coming back into favor abit lets hope so.P.S who's doing your barreling job for you
ATB sean