I was rushing to complete errands after work on Friday. My last stop was at Wally World to buy 300 rounds for the IDPA match. Well, as usual, after Big Jim McBob finally wandered over to ask what I wanted, he only had 200 rounds in stock. This was the WWB 165 grain value pack, which in my USPF 40 shoots to the same POA/POI as my duty ammo. But ole Jim did have two 50 round boxes of 180 grain WWB 40. Being rushed, and not wanting to go across town, or run out of ammo on Saturday, I took it.
Well, my HK USP was running flawlessly through the first four stages. 3800 rounds through it at that point with no malfunctions. At stage five, I open up and load a box of the 180 grain. This stage was all close range, so I thought I'd see where the rounds printed. Load and make ready, buzzer, BANG, FTF JAM! Tap, go to rack, slide goes into battery on it's own. BANG, BANG, FTF JAM. The gun has never let me down, is not very dirty, and the mag springs are fresh.
After I'm done with my malfunction drill practice, and the stage, I examine the remaining rounds in the mag. I notice that everyone of them has a slight ridge, around the circumference of the bullet. The bullets are flat nosed, like the WWB 165 grain 40, but while my eyes can barely discern the ridge, my finger tip can feel it, and my USP apparently did too. I switched back to WWB 165 grain 40, for the rest of the match, and my USP ran flawlessly.
Has anyone had a similar experience with their USP's and 180 grain WWB 40? I thought I'd just pass this along, as I thought it was unusual. Oh, the second box of 180 grain rounds exhibited the same ridge around the edge of the bullets as well. Regards 18DAI.
Well, my HK USP was running flawlessly through the first four stages. 3800 rounds through it at that point with no malfunctions. At stage five, I open up and load a box of the 180 grain. This stage was all close range, so I thought I'd see where the rounds printed. Load and make ready, buzzer, BANG, FTF JAM! Tap, go to rack, slide goes into battery on it's own. BANG, BANG, FTF JAM. The gun has never let me down, is not very dirty, and the mag springs are fresh.
After I'm done with my malfunction drill practice, and the stage, I examine the remaining rounds in the mag. I notice that everyone of them has a slight ridge, around the circumference of the bullet. The bullets are flat nosed, like the WWB 165 grain 40, but while my eyes can barely discern the ridge, my finger tip can feel it, and my USP apparently did too. I switched back to WWB 165 grain 40, for the rest of the match, and my USP ran flawlessly.
Has anyone had a similar experience with their USP's and 180 grain WWB 40? I thought I'd just pass this along, as I thought it was unusual. Oh, the second box of 180 grain rounds exhibited the same ridge around the edge of the bullets as well. Regards 18DAI.