I bought a 686P back in August, and it came with an internal lock. I have put over 1200 rounds through the weapon so far and no problems. I keep hearing that S&W revolvers aren't what they used to be and that the locks can cause problems. This was my first gun, and I really had no choice if I wanted a new gun. I just want to know if I should get rid of it soon, or keep it and trust it. It shoots well--very accurate and smooth. ::Shrug::
It also has a frame mounted firing pin, only a few failures to fire---cheap ammo with hard primers, but it's far and few in between. The pin dented the primer well enough just no boom. It happens on one brand in particular that one range sells (can't remember the name as I don't buy it anymore). The Federal target ammo works perfect every shot either .38's or .357--never a problem.
Ciao,
Effy
It also has a frame mounted firing pin, only a few failures to fire---cheap ammo with hard primers, but it's far and few in between. The pin dented the primer well enough just no boom. It happens on one brand in particular that one range sells (can't remember the name as I don't buy it anymore). The Federal target ammo works perfect every shot either .38's or .357--never a problem.
Ciao,
Effy