First time at the range today to zero the XCR. Using Remington UMC 55grain FMJ and some left over Wolf 55grain FMJ. The UMC ran perfectly, but I could not get the Wolf to run at all. I had multiple FTEs causing jams. If you notice in the picture the rim of the Wolf cartridge is chewed off by the extractor therefore causing the extraction failure. Anybody seen this.