It doesn't matter a Sig 228 will eat anything or at least mine will. This is a terrible thing to admit, but I let my 228 go one year without cleaning it. I shot it twice a month with varios 115 grain fmj winchester, usc, amer eagle, lawman, pmc, lead reloads. The gun never had a problem. I have a friend who bought a 226 shortly there after, because he was amazed. His feeds just as well.