NO REGULATOR NEEDED fot TT AAA Condor
My new bathtub
No, I don’t know how it shoots yet but this string looks good enough to get me to the range before global warming ever starts  :rofl:
Oh, specifics first,
.25 x 24″ TT AAA Condor Updated to TT QCTH, super modded by me by putting an O-ring behind the TopHat, Power Wheel still about where Tony set it up at 9 / 8,
30 shots of 25.4 gr. .25 cal. JSB Kings from 2800 PSI down to about 2350.
Chronographed by new Caldwell Ballistic Precision factory calibrated chronograph indoors using premium (invisible) IR LED Light Kit. Almost 150 registered shots with NO ERRORS yet. 
So here is the inverted tub:
931, 927, 926, 930, 933, 936, 943, 945, 946, 943, 941, 949, 954, 953, 947, 948, 948, 946, 948, 943, 945, 946, 941, 940, 938, 936, 931, 931, 929, 926
Average 940 FPS AND 50 FT/LBS ENERGY.
Stdev: 8.3
What with 16 shots from shot 8 to shot 23 rining from 945 to 954 and back down to 941 who needs a regulator ❓ so I’ll fill to 2700 and shoot down to about 2490. I particularly like the average of only 15 PSI per shot. Now if only I could hit the target at 50 yards.
Here is how I initially analyzed the string averaging the total air used:
.25 (L) 25.4 gr. “JSB KING”
(L) = QCTH LARGE restrictor.
PW: 9/8   PSI: 2800 – 2350
30 shots avg. 15 PSI/SHOT
    FPS     PSI
 1) 931    2800
 2) 927    2785
 3) 926    2770
 4) 930    2755
 5) 933    2740
 6) 936    2725
 7) 943    2710
 8) 945    2695  *about2700
 9) 946    2680
10) 943    2665
11) 941    2650
12) 949    2635
13) 954    2620
14) 953    2605
15) 947    2590
16) 948    2575
17) 948    2560
18) 946    2545
19) 948    2530
20) 943    2515
21) 945    2500
22) 946    2485   *
23) 941    2470
24) 940    2455
25) 938    2440
26) 936    2425
27) 931    2410
28) 931    2395
29) 929    2380
30) 926    2365
ENDING PSI 2350
Avg: 940.0 FPS
Stdev: 8.3
Spread: 28
True MV: 942
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Thanks Salticon, i had no idea as i never competed other than against myself. The police and corrections qualifying I did twice a year was almost all at center mass. When they wouldn’t count my same hole shots I started throwing a shot to the head that still counted. :rofl: