Don't use abrasives on the slide-to-barrel locking surfaces.
If the axial slop between barrel and slide exceeds maybe .020",
then that slop could grow from recoil impact, maybe to the point
of ruining the gun, depending on the quality and condition of the metals.
If that axial slop grows to maybe .060", then the barrel could ride up over
the barrel locking face, damaging the locking surfaces, and the barrel
could unlock from the slide before the bullet leaves the barrel.
The pk380 is no more likely to fail in this way than most other pistols.
Minimizing the axial "slop" is the main issue, and any problem is
not likely to show up under 3,000 rounds.
.
If the axial slop between barrel and slide exceeds maybe .020",
then that slop could grow from recoil impact, maybe to the point
of ruining the gun, depending on the quality and condition of the metals.
If that axial slop grows to maybe .060", then the barrel could ride up over
the barrel locking face, damaging the locking surfaces, and the barrel
could unlock from the slide before the bullet leaves the barrel.
The pk380 is no more likely to fail in this way than most other pistols.
Minimizing the axial "slop" is the main issue, and any problem is
not likely to show up under 3,000 rounds.
.
