If 54 years old and my dad passes away about a year ago.while cleaning out his house came accross 2 boxes of smith blue box.I rember when he got it as he had purchased a ruger security six and that was the first revolver I learned to shoot. These boxes were 158 gr jacketed soft points and I thought I would just shoot them to get rid of thes and reload the nickle cases. I shot them out of my model 19-4 and I got to tell you that they are very hot.Didn't flatten the primers but they were very hard to eject out of the cylinders. I would compair the recoil to a 15 gr of 2400. I pulled the bullets out and I'm going to reload. The model 19 handled it with no problems but these were very hot.