So, went to the range today to test some .45 loads and set up my chrony about 12 ft away. But before I shot the .45 I shot my 9mm since I had more rounds, to make sure everything is working, lol. It was very sunny which my chrono doesn't like but I believe most don't. I installed the diffusers. My first shot didn't register, On my second, the left front rod and diffuser goes flying off, bent and on the ground. The sensors are intact. Thinking I shot it, retrieve it and straighten it out the best I could, just so it covers the sensor. Shot again and got a wrong reading 25xx. Second shot the same rod goes flying and bent, now I'm saying no way I misaimed twice but it happens. I repeat the fix and move the chrono back for a total of about 18 ft and the next shot the rear left rod and diffuser goes flying and bent. There's no way I misaimed 3 times. So I quit for further investigation, Btw, I did get 1 reading that seem close, 650 fps.
My thought is un-burnt powder and/or gases traveling behind caused the damage. Any thoughts would be appreciated.
The load I was using is 9mm Federal cases, win spp, 5.1 grs CFE-P, 124gr XTP seated at 1.060. Loaded
My thought is un-burnt powder and/or gases traveling behind caused the damage. Any thoughts would be appreciated.
The load I was using is 9mm Federal cases, win spp, 5.1 grs CFE-P, 124gr XTP seated at 1.060. Loaded