A jam is almost never the fault of the ammunition.
However, some guns prefer certain loads to others, and some guns won't reliably feed hollow-point ammunition until they've received some polishing that should have been done at the factory.

Unreliable feeding is almost always due to either wrongly-shaped magazine feed-lips, or a rough or wrongly-angled feed ramp.

Call Taurus, and tell them you'd like a shipping label to send it to them for warranty repair. You should not accept a pistol that doesn't shoot reliably (100% of the time). I understand that others have had some problems with the 709, but Taurus has taken care of those folks.

Supplementary Information:

I seem to remember some posts elsewhere (on another forum?) in which the owner of two of these pistols demonstrated that the feed ramp of one of them had been machined to quite a different contour from that of the other one. Only one of his family's pistols feeds rounds properly.

This owner has been trying to get Taurus to provide a barrel with a properly-machined feed ramp for the malfunctioning pistol, so far with no luck. He states that he is considering legal action.

The photographs he provided show that the feed ramp of the malfunctioning pistol was machined to be narrower at its bottom and top than in its middle, while the working one was machined with straight sides and equal widths.

Maybe it would be useful to ascertain if your problem pistol has a poorly shaped feed ramp.

Ok, I'll try that.

Yeah, that guy is me. Check out the update thread here:

Three strikes and Taurus is OUT!

I included a video detailing the problem that makes it pretty clear. If I wouldn't have had access to the second properly functioning TCP I would have never figured it out. Unfortunately, after 3 trips to the factory, Taurus hasn't "figured it out". I have contacted an attorney and was referred to another attorney in Florida (Taurus home state). They are currently working on the matter. If I make any headway I'll let you know.