Jam question

[Colt45ws]

I just bought 200 rounds of DoubleTap 124gr 9mm +P JHP. I went to the range to shoot some through. On the last round of the second magazine it did this exact jam. I thought it was locked back on an empty magazine until the mag would not drop out.
http://colt45.ws/misc/uspjam.jpg
It went off to the right and got jammed on the edge of the ramp.
The only other time it did this was when I was new to pistols and I racked it except I held the slide on the way shut instead of letting it go on its own. But this was cycling from the previous round. Did I limp wrist it? Or does it not like the ammo? Something else maybe?
Oh, I have Wolff +10% mag springs, in case that changes anything?

[hkozzie]

I just bought 200 rounds of DoubleTap 124gr 9mm +P JHP. I went to the range to shoot some through. On the last round of the second magazine it did this exact jam. I thought it was locked back on an empty magazine until the mag would not drop out.
http://colt45.ws/misc/uspjam.jpg
It went off to the right and got jammed on the edge of the ramp.
The only other time it did this was when I was new to pistols and I racked it except I held the slide on the way shut instead of letting it go on its own. But this was cycling from the previous round. Did I limp wrist it? Or does it not like the ammo? Something else maybe?
Oh, I have Wolff +10% mag springs, in case that changes anything?

Ahhh a failure to feed... you may have been limp wristing... how many rounds did you go through at the range? Were you fatigued from shooting a lot of rounds? Also... what does the casing look like on the round? Is it dinged/bulged/any irregularities?

[Colt45ws]

Ahhh a failure to feed... you may have been limp wristing... how many rounds did you go through at the range? Were you fatigued from shooting a lot of rounds? Also... what does the casing look like on the round? Is it dinged/bulged/any irregularities?

It was my second mag. I was actually carrying it 15+1 with them (I had just got the stuff hours earlier.) So I wipped it out and shot it. Then popped in a second mag and ended up jammed on the last one of the second mag. Limp-wrist is a possibility. I was new to the pop! of the +Ps.

[cueist]

I would mark it down to you not be familer with DoubleTap and it's different feel. I am a big fan of DT and a lot of people that I have introduced it to are shocked by how it shoots.

[Colt45ws]

I would mark it down to you not be familer with DoubleTap and it's different feel. I am a big fan of DT and a lot of people that I have introduced it to are shocked by how it shoots.

That makes sense.
I started shooting fairly late in the day and by the time I was done light was fading fast. Towards the end I started noticing the muzzle blast. My brother was impressed with it.