It used to decock the hammer from full to half. The left side will decock past half but it still does not hit the striker. The right side will decock to half. The hammer will rooster to half. The hammer has a notch on it that will catch and stop at half rooster, but it is worn away on the left side. Enough to allow it to slip past.
I tested it about 2-3 times after I noticed the issue, about a dozen when I got home on an expended cap (with a piece of tape that would show a mark or puncture - no new marks or puncturing. The safety and all else is operational (once I noticed the right side would work, I looked to see that wear on the hammer).
On Sunday, I decocked 1x after stage 1, 2x on stage two, 2x on stage 3 and 2x on stage 4. So 7 times on Sunday.
Monday - I went to the range and must have decocked atleast 15 - 20 times.
Tuesday - I went to a range and must have decocked atleast 3 - 4 times before noticing the issue.
*Here are events that may have caused this issue*
Monday - My idiot unsafe disrespectful friend drops the slide twice (after instructing him to leave open or walk the slide back)on empty.
Tuesday - While shooting (I noticed that once with me and once with my instructor that the slide had dropped on an empty mag during shooting. 1 fail to fire (dud but cap was struck) and the instructor had dry fired it at least twice to show me how to adjust for flinch.
Thanks to everyone for their help. I know that the safety will work, I know that the right side will work and if in competition, I can use that or manually decock it will be 100% fine. I just am not to certain of the left side decocking and a round not going off. I ALWAYS POINT DOWN RANGE OR IN A SAFE POSITION WHEN DECOCKING OR TESTING THE SAFETY EVEN WHEN EMPTY!! This is a habit.
I can't tell what's happening from your video.... Let's work through this from what we know.
Did you decock a hot pistol 4 times Sunday night at Heartland?
How many times did it AD?
Right answers .....4 possibles--- 0 failures
Did you alter the gun since that ? no? If not, what made the de- cocker break?
Common sense tells me that unless you took things apart that were way outta your pay grade on Monday- your Taurus is okie dokie.
Test my hypothesis.... Head up into some rural area where you can legally discharge your pistol. Load it, rack it, point it in a safe direction with your soft parts in the clear, activate your de cocker until it fails.... If it does'nt fail after a few dozen tries... Use your pistol with normal dilligence.
If you can't find a safe place to go hot,,,, purchase a set of snap caps and do the same thing.
Question... Is your pistol under recall, and doesn't make loud noises when you test it use it with the relative confidence we'd give any de cocker equipped handgun.
That's my .02- take it for what it's worth