My father and I took my kids to the range for some target practice. My father decides to let my kids shoot his brand new Taurus .17 HMR revolver. My daughter kept getting misfires, so we have the gunsmith at the range look at it, what we found out was that my dad had used .17 mach2 ammo instead of the HMR. The gunsmith found 2 round jammed in the barrel (glad my daughter didn't get hurt). So we sent it back to Taurus because it was going to need a new barrel. My dad told me I could have the gun if I paid for the repair cost. We get the gun back from Taurus, no cost, repaired under their lifetime warranty program. I thought that was great because it was our fault and not the design of the gun. So I got a new gun for free.