----------- 3200 psi812.1823.6827.5834.4 <= 3% high bound----------- 3050 psi835.3830.7842.3848.2 <= 1% high bound----------- 2950 psi850.7844.4845.2850.4----------- 2850 psi856.0 <= peak854.5852.1852.2----------- 2700 psi851.2 <= 1% lower bound846.6840.6840.0----------- 2550 psi836.5831.2 < 3% lower bound825.8821.4----------- 2400 psistopped - I could have had a couple more down to 812...
----------- 3200 psi768.8772.0 <= 1% high bound774.0772.8773.5----------- 3000 psi774.6776.9774.7770.0 <= 1% low bound766.5----------- 2800 psi
I was tuning for 2750psi as the mid-point for the curve.MRod w/stock valve and ports (velocity screw out) and 6" MM tube extension6 preload x 7.5 throw on 10# springstarting pressure 3000psi as measured on my Hill pump (3200psi on Benji gauge)27.8 gr Benji Destroyers (HP)----------- 3200 psi812.1823.6827.5834.4 <= 3% high bound----------- 3050 psi835.3830.7842.3848.2 <= 1% high bound----------- 2950 psi850.7844.4845.2850.4----------- 2850 psi856.0 <= peak854.5852.1852.2----------- 2700 psi851.2 <= 1% lower bound846.6840.6840.0----------- 2550 psi836.5831.2 < 3% lower bound825.8821.4----------- 2400 psistopped - I could have had a couple more down to 812...overall: Average velocity 839.7 fps Average Energy 43.56 fpe Extreme spread 43.85 fps (5.2%) StdDev 11.91 1045.4 fpe in 800psi (I am not sure of the total volume with the extension so I don't have the efficiency)If I throw away the first shot the numbers improve...BUT - I had 10 good shots within 1% (11 in 1.2%) at 44.5+ fpe. < *If you want to shoot accurately at 100 yards, shoot from the "sweet spot" of the string I hope to improve this vastly with a WAR valve and SSG - on order.
Also, may want to try JSB King 25.39 grain pellets. They have a great reputation for shooting accurately. HP = The .25 cal. hole ( by itself ) can do a lot of damage.
Good #'s but what's the accuracy like? Looks too slow to me to be accurate.