mrbigtexan has a point. The only way to know what will work in your gun is to try it. Maybe those 100 grain bullets will work great in your gun. Maybe they won't feed at all, or maybe they will, but they'll shoot all over. Nobody can tell you what will work in your gun till you try it. I'm sure there's guys that have tried those bullets in their guns and can tell you the luck they've had with them, but good or bad, I wouldn't take their results as being particularly conclusive.