[Iowegan]

ventibrewdude, Turn lines on cylinders are just part of owning a DA revolver. You can remove the turn line but it will reappear the next time you live fire or dry fire the gun. On a new gun, buffing the angled tip of the cylinder latch (the part that sticks out of the frame) will slow down turn line wear but if there is already a turn line, it's best to just leave it alone. The cylinder dragging on the latch has virtually no affect on trigger pull. It happens in all DA revolvers so it's just a cosmetic issue you have to accept.

 

[Iowegan]

ventibrewdude, I use a muslin buffing wheel with 500 grit compound. This will shine up the part like chrome without removing any significant amount of metal. Avoid files, sand paper, or any other abrasive tools because it will ruin the part.

For stainless Security-Sixes, the cylinder latch is made of stainless steel. For blued models, it's made of conventional "bare" steel. Maybe the previous owner tried to doll it up with some cold blue????