The original post on Gold dots came from me.
When my friend tried to chamber 124gr Speer Golddots in his P99 the bullet became stuck in the rifleings, and the gun locked up. The lockup occured AFTER a round was fired. The lockup occured as the weapon tried to chanber another round. A trip to the gunsmith revealed that there was NOTHING wrong with the weapon. The problem was with the shape and the length of the bullet only!
My friend was advised to not try to shoot 124gr Golddots in this pistol. I took this advice to heart, and did not try them in my P99 at all, and posted the warning on TFL as a courtesy to other P99 ,and by extension,SW99 owners. Having a live round stuck in ones pistol is not a good thing! As an aside, the same thing happened to me when I was shooting his Walther P5. Same bullet weight, same brand, and fix.