At least I'm guessing it's the regulator.
Was shooting 26.8 gr. NSA slugs and getting about 850 fps. Then at around 160 bar it seemed to fall off the reg but instead of losing velocity it gained. So I was curious and shot two and a half more magazines where it went up to 890 fps then back down to 810 fps.
I charged it back up to try the 29 gr. NSAs and it had a huge variance from shot to shot. Weirder it would go back and forth between the two velocity ranges. The string looked like this. 803, 738, 798, 777, 822, 754, 805, 756, 806, 748, 800, 751, 810, 754, 810, 758, 812, 765, 817, 768, 820, 772, 816, 774, ,820, 780, 823, 784, 819, 786... Very strange. If you looked at each other one it wouldn't have been bad. Accuracy was terrible.
I then went back to the 26.8's (pressure now at about 210 bar) and got similar but not quite as extreme behavior. 857, 831, 857, 824, 843, 815, 839, 813, 831, 813...
Any ideas what is going on?
Was shooting 26.8 gr. NSA slugs and getting about 850 fps. Then at around 160 bar it seemed to fall off the reg but instead of losing velocity it gained. So I was curious and shot two and a half more magazines where it went up to 890 fps then back down to 810 fps.
I charged it back up to try the 29 gr. NSAs and it had a huge variance from shot to shot. Weirder it would go back and forth between the two velocity ranges. The string looked like this. 803, 738, 798, 777, 822, 754, 805, 756, 806, 748, 800, 751, 810, 754, 810, 758, 812, 765, 817, 768, 820, 772, 816, 774, ,820, 780, 823, 784, 819, 786... Very strange. If you looked at each other one it wouldn't have been bad. Accuracy was terrible.
I then went back to the 26.8's (pressure now at about 210 bar) and got similar but not quite as extreme behavior. 857, 831, 857, 824, 843, 815, 839, 813, 831, 813...
Any ideas what is going on?