OOPS! Good eye GM. That label is on the wrong picture. The bullet in that picture is from my .41 Mag Ruger Bisley, shot at around 1500 fps.

I think it was one recovered from the same mud patch/puddle as the ones in the picture of 240 grain bullets. Over the years, bullets have trenched out a section of the upward sloped ground about 20 yards behind our 50 yard target, leaving a section that stays muddy/wet unless there's been no rain for a while. It collects a lot of bullets.