I guess this post is the next chapter to this thread where I received some great advice from folks here on how to replace the regulator in my .22 Royale. I was able to chrony over 250 shots today and I'm very, VERY happy with the results!
Note: the .22 Royale has 12-shot magazines and the data below is cumulative through the entire shot count. I did not reset the avg, es or sd until the gun was off the regulator which was about 140 bar.
My tank was kind of empty so you'll notice that the upper fill pressure drops between each test.
Test 1 - JSB 15.9 / fill 219 to 129 bar / 29 fpe
Test 2 - Variety of pellets / 210 bar to 141 bar
Test 3 - JSB 18.1 / fill 209 to 139 bar / 30.7 fpe
Here are pics of my notes and targets. I should have labeled the groups. I'm sure I'll forget what the heck they are... Tests 1 and 2 were at 30 yards. Some of test 2 shots (h&n bm) are on the test 3 targets which were shot at 50 yards.
Weather was decent. But the winds came and went. This was a lot of shooting and the groups reflect that (some excuse, huh?). The gun is capable of better when I concentrate more... For the most part, each group is a full mag (12 shots).
Test 1 photos
The really crappy group here was my 1st as I started to sight the rifle in... ;-)
Test 2 photos (some BM shots are on test 3's target)
Test 3 photos
Group of the day actually was almost the last one I shot (wind was calm). A full mag of JSB 18s at 50 yards using old spook's dime target
Note: the .22 Royale has 12-shot magazines and the data below is cumulative through the entire shot count. I did not reset the avg, es or sd until the gun was off the regulator which was about 140 bar.
My tank was kind of empty so you'll notice that the upper fill pressure drops between each test.
Test 1 - JSB 15.9 / fill 219 to 129 bar / 29 fpe
- Mag 1 = avg 908 fps / es 3 / sd 0
- Mag 2 = avg 907 fps / es 7 / sd 1
- Mag 3 = avg 907 fps / es 7 / sd 0
- Mag 4 = avg 907 fps / es 8 / sd 1
- Mag 5 = avg 907 fps / es 11 / sd 2
- Mag 6 = avg 907 fps / es 11 / sd 2
- Mag 7 = avg 906 fps / es 30 / sd 5
- Mag 8 = avg 902 fps / es 47 / sd 11
Test 2 - Variety of pellets / 210 bar to 141 bar
- JSB 14.3 express / 936 fps / 27 fpe (high)
- JSB 14.3 express / 713 fps / 16.1 fpe (medium)
- JSB 14.3 express / 551 fps / 9.7 fpe (low)
- H&N Baracuda Match 21.1 / 820 fps / 31.5
- Shot 7 mags / 84 pellets at various power levels did not see it drop off reg even with ending pressure of 141 on final mag.
- Four mags were with the jsb express at various power settings and 3 mags were the H&N bm.
Test 3 - JSB 18.1 / fill 209 to 139 bar / 30.7 fpe
- Mag 1 = avg 874 fps / es 5 / sd 1
- Mag 2 = avg 874 fps / es 5 / sd 1
- Mag 3 = avg 874 fps / es 9 / sd 2
- Mag 4 = avg 873 fps / es 9 / sd 2
- Mag 5 = avg 873 fps / es 9 / sd 2
- Mag 6 = avg 872 fps / es 21 / sd 4
Here are pics of my notes and targets. I should have labeled the groups. I'm sure I'll forget what the heck they are... Tests 1 and 2 were at 30 yards. Some of test 2 shots (h&n bm) are on the test 3 targets which were shot at 50 yards.
Weather was decent. But the winds came and went. This was a lot of shooting and the groups reflect that (some excuse, huh?). The gun is capable of better when I concentrate more... For the most part, each group is a full mag (12 shots).
Test 1 photos
The really crappy group here was my 1st as I started to sight the rifle in... ;-)
Test 2 photos (some BM shots are on test 3's target)
Test 3 photos
Group of the day actually was almost the last one I shot (wind was calm). A full mag of JSB 18s at 50 yards using old spook's dime target
