I have noticed several threads recently where someone talks about a load for a 175 grain SMK. What are you talking about?? Sierra makes a 175 grain Match King in 7mm and .30 caliber. I have no idea how many different 7mm cartridges there are in common use. There are even more variations on the .30 caliber (.308 dia. bullet). The 308 Winchester is not near as popular as some people think. So when you talk about or ask about a load please be specific about what cartridge and chambering you are talking about.