Any answer you get here isn't the right answer. The right answer is for you to shoot your gun with different ammo; and decide which one feels the best and is the most accurate for you. As for expanding and doing it's job; any of the reputable companies will be fine. But as 9mmepiphany said he couldn't get golden sabers to shoot well in his P220; (And I am not questioning his results); I on the other hand make the Golden Saber 230 HP my #1 self defense ammo in my P220. Then again; I haven't found ANY ammo; and I've tried probably all of them if they can be bought; that wouldn't work in my P220. The damn gun will shoot pebbles if I wanted it to. It's a 1989 W. Germany made P220. And it's the most reliable and most accurate gun I've ever shot. The only one I ever saw that had problems, was a friend who "THOUGHT" he knew more than SigSauer does about guns, and replaced springs with a set of "Wolff Springs". He had all sorts of ejection and feeding problems. Once I "FORCED" him to try putting back in the "Original" springs; he hasn't had 1 issue. But again; you have to shoot the ammo and test it for yourself. And if you thing "XYZ" ammo shoots the best out of your gun, then that is what you should shoot. And it doesn't matter what one person here thinks. Especially if they say "XYZ" ammo sucks. All that matters is that it works for you. You're shooting a 45 caliber bullet. There isn't a larger diameter self defense caliber out there. (Sorry, 460 and 500 don't count as self defense calibers). At the speed of a 45acp (800-900 fps), you can shoot hard ball lead at the bad guy and it will stop them.
