What is going on, with my 223AI
Shooting some Sako 50 gr. SP at 100 m., speed 960 - 980 ms., the funny thing happend, that my 10 shot groups was 15 mm. high, but 65 - 70 mm. wide ??
Tried to speed this fabrik loads, with some more powder, and the groups get better, but first around max. load and around 1050 ms.
Twistrate is 14"
Can annyone tell me, what is going on ??