Sooner or later, it happens. I made the third breakin and load tuning run with the new Frontier (54 cal) I got to talking and did not pay enough attention, and dryballed it. No big deal - right? Check the kit, dang, did not bring the screwdriver set so I could pull the liner. Grab the CO2 discharger - oops, been meaning to get some cartridges. Dang. SO - I use a 3/8" brass range rod for these sessions, and carry almost everything I need for just such occasions, this just happened to be the first time (with a 54) I remove the jag, grab the ball puller which was still in the TOTW little plastic bag. Put it in the rod, felt a little funny but OK, lets pull the ball. Punched the rod down the barrel, gave it a bit of a tap to start the screw, gave it a couple of turns - it went limp.... I pulled the rod out, way too easy, and - NO Ball and No Ball Puller. OK, no huge deal, must have stripped the threads on the ball puller, threads on rod looked OK.... Then it hit me - ball puller must have the wrong threads on it. I checked the packet it came in, just a part number. Pick up, go home, deal with it there. When I got home I checked the part number, listed as 10/32 threads. I taped a doughnut onto a smaller steel shotgun rod to keep it centered, slid it down the barrel and easily connected with the 8/32 threads on the ball puller. Gave her another round to drive it in. After extracting the ball (an easy pull since I lube with mink) and examined the offending tool. Yup - definitely 8/32 threads. Lesson in all this? When you buy new tools, parts and equipment - check to make sure it is what you need. Labels can be wrong. If this had been on a hunting trip, could have ruined a whole weekend.