I will not buy anymore Winchester Factory White Box .45 ACP! I bought 500 rounds on a good sale several years ago. It shoots fine without any FTF. However, it's the dirtiest ammo I've ever shot! Only fired 30 rounds for fun after sighting in another pistol. Cleaned my 1911 tonight and the patches looked like it had fired 300 rounds, not 30. I suspect they use Win 231 powder, but not certain. Whatever it is, I don't like it...but my Hoppe's #9 does.