I had an old 6 inch model 27 many years ago. It was very accurate…6 rounds into the 10 ring whenever I wanted. I was dry firing it one night and the hammer just split in two. Simply cracked into two jagged pieces. I could’ve got a replacement, but I thought if the hammer could disintegrate under no pressure, what could happen to the cylinder under pressure? Very sadly, I turned it into the cops for destruction.