Since this is an anonymous forum, I'll confess, my absolute stupidity that went against all gun handling rules. I have a Puma in 44 Magnum. I was trying a new bullet (Ranch Dog 265 RNFP.) because I had been having feeding problems with another style. I had loaded a few with low-medium loads of Blue Dot and wouldn't be able to get to the range soon so I put a few in the magazine. Working in my shop (a Tuff Shed) with the gun on it's left side on my bench I fed a few rounds watching through the ejection port. Three fed OK, but the fourth fired when I closed the lever. The cast bullet (about 12 BHN) went through a 3/4" plywood wall, across a 4' gap into the back of my house (mobile home.). The exterior wall is 1/2 plywood covered by aluminum siding. The bullet went through the exterior wall and an interior wall into my closet, through 3 shirts, through a sliding door, through a corner of an interior door, through a wall, through a decorative folding screen, through another interior wall, through a 1/2 wooden plaque, through another 1/4" panel an embedded in a 2x4 edgewise about an inch deep. Wasn't loud at all and I went outside and saw the holes in the shed and the house wall. My stomach sunk and I got a bit nauseous. I ran inside and surveyed the damage. Thank God my wife wasn't home not only because she might have been hurt, but I just barely survived when I explained all the holes in the house and if she was home I surely would have been in extra deep sh*!...
I have made dummies before and since my major mind fart, but I was kinda in a hurry to see if the ammo fed properly. Since then , 10 years ago, no live ammo goes in any gun's chamber when I'm not at the range (I do have HD weapons with loaded magazines, but none chambered)....