Im Webforum "Targettalk" hat gerade ein amerikanischer Coilege-Coach um Rat gefragt. Einer seiner etwas älteren Walther GSPs macht plötzlich Zicken. Und das gerade jetzt vor anstehenden Meisterschaften. Die Schilderung istr nicht komplett aber ziemnlich detailliert. Irgendetwas an der Waffe führt auf einmal zu häufigen Zuführungs- und Auswurfsörungen. Für die betroffene junge Schützin, die diese Waffe vor allem schießt, ist das natürlich sehr beunruhigend.
Die Beschreibung deutet - bei unveränderter Munition. die bisher immer gut lief - tendenziell ja auf einen Waffendefekt hin. Aber was könnte passiert sein? Möglicherweise kennen die erfahrenen GSP-Schützen hier ein solches Phänomen:
"The collegiate team I help coach mostly shoots Benelli MP90/95's, and a handful of Pardini SP's. We have two Walther GSP's that mostly collect dust. However, we have one young woman who shoots great, but didn't have the hand-strength to work the action on the other pistols. She's been shooting one of the GSP's for about 3 years now.
She hasn't had any trouble with it until last week. She cleaned & lubricated it the same way she always has, and it suddenly started having serious problems. She's been shooting CCI standard velocity ammo all this time without any issues. The symptoms are:
Failure to eject: Either trapped brass (stovepipe), or occasionally, the fired case gets pushed back into the chamber.
Failure to feed: It ejects OK, but the bolt doesn't come back far enough to pick up the next round and the bolt closes on an empty chamber
We had the collegiate Sectionals yesterday, which determine who gets invited to the National Championships. She shot both Standard Pistol and Sport Pistol. The pistol started messing up immediately, but I managed to get her through both matches by having her put a drop of thin oil on the top round of every magazine. We've never had to do that before. It wasn't a total cure, and she ended up losing one shot in each match. I still think she did well enough to qualify for Nationals, but we clearly need to fix her pistol. I took it apart between the two matches, and we went over it carefully together. Every thing looked fine, and we lubricated it and the bolt cycled nice & smoothly by hand. The functioning problems were not noticeably better or worse afterward.
I know next to nothing about GSP's (last night was the first time I'd ever taken one completely apart...). There is clearly something subtle going on. I don't know if the fact that it died after cleaning last week is a coincidence or not. Everything points to there being too much drag during the extraction process, but it feels fine. She has used thin oil (RemOil) in the past. I added a tiny bit of thin grease in a few spots that I thought might need it, but that could have made things worse, but not significantly.
Several questions for the GSP experts out there:
1) Should we stick with oil & skip the grease?
2) Any likely points/parts I should check?
3) We have the 2nd GSP. How interchangeable are the parts? For example, can I swap bolts and barrels back & forth to try to narrow down the problem, or are they fitted & matched?
One other option would be to switch her to Winchester T22, which has a bit more kick than the CCI.
I've got less than a month to sort this out before the National Championships. Any help & suggestions would be greatly appreciated."
Dankeschön für jeden Tip,
Carcano