So I started to dial in my Brocock Bantam in 0.25 cal. I noticed when doing a shot string prior to installing the Regulator that the grouping seemed to tighten up while shooting from 200 down to 110 Bar. So I filled it back up to 150 Bar, and shot at targets in 5 shot groups and using the LabRadar recorded the speed and wrote down the pressure on the gauge.
150 Bar - JSB Exact Kings 25.39 Grain, 50 yard target (laser Ranged) Scope was not adjusted during test. Caldwell Sled used to hold rifle. Clearly Group 5 is the tightest at 110 Bar
150 Bar - 753, 751, 749, 745, 743 - 140 Bar
140 Bar - 741, 736, 730, 732, 729 - 130 Bar
130 Bar - 727, 724, 722, 721, 714 -120 Bar
120 Bar - 714, 712, 708, 705, 702 - 110 Bar
110 Bar - 699, 697, 694, 688, 688 -100 Bar
Installed Altors regulator set at 110 Bar, Gun gauge said 110 Bar and Bottle Gauge read 2500 PSI. which is what was in my tank.
676, 685, 688, 685, 685
Scope adjusted 8 clicks up - 6854, 684, 685, 686, 692, 687, 692, 694, 694, 695
Scope adjusted 4 clicks down - 699, 681, 691, 691, 690
Scope adjusted 1 click down - 687, 686, 697, 687, 693
The groups really never were as tight as Group 5 in the photos, but the speeds were the same. Not sure I should move the regulator up and down some and see where it settles in.
Smitty
150 Bar - JSB Exact Kings 25.39 Grain, 50 yard target (laser Ranged) Scope was not adjusted during test. Caldwell Sled used to hold rifle. Clearly Group 5 is the tightest at 110 Bar
150 Bar - 753, 751, 749, 745, 743 - 140 Bar
140 Bar - 741, 736, 730, 732, 729 - 130 Bar
130 Bar - 727, 724, 722, 721, 714 -120 Bar
120 Bar - 714, 712, 708, 705, 702 - 110 Bar
110 Bar - 699, 697, 694, 688, 688 -100 Bar
Installed Altors regulator set at 110 Bar, Gun gauge said 110 Bar and Bottle Gauge read 2500 PSI. which is what was in my tank.
676, 685, 688, 685, 685
Scope adjusted 8 clicks up - 6854, 684, 685, 686, 692, 687, 692, 694, 694, 695
Scope adjusted 4 clicks down - 699, 681, 691, 691, 690
Scope adjusted 1 click down - 687, 686, 697, 687, 693
The groups really never were as tight as Group 5 in the photos, but the speeds were the same. Not sure I should move the regulator up and down some and see where it settles in.
Smitty