سلام
اقا چه خبره؟ لطفا" رعایت کنید از روی احساسات حرف نزنید .
نتایج تست کرونوگرافی :
Anyway, results:
First magazine, measured in ft/s using JSB Exact 16gn:
1037.80
1029.68
1003.48
1002.48
1010.60
1016.96
1009.50
995.96
994.24
1010.09
1010.60
1020.22
1003.64
1019.62
Average speed: 1011.78 ft/s (308 m/s)
Average energy: 36.4 ft/lbs (49.3 J)
Air left, see "After first mag".
That went from 300 bar to 225 in 14 shots...that doesn't look good! Lets try a second:
1010.34
1007.99
1039.58
1030.03
1020.65
1015.51
1015.17
1016.79
1006.81
1009.92
1006.98
1006.23
1006.81
997.19
Average speed: 1013.57 ft/s (309 m/s)
Average energy: 36.5 ft/lbs (49.5 J)
Pressure left, 200 bar: See "After second mag". That's nicer, so lets try a third magazine:
1005.14
1005.31
871.23
1017.90
868.42
862.54
1002.64
1016.37
1026.36
1037.71
1030.56
1033.99
980.71
1001.90
Average speed: 982.91 ft/s (300 m/s)
Average energy: 34.3 ft/lbs (46.5 J)
Air left, see "After third mag". Nice, it takes about 25 bar for a magazine, not counting the first one. This is 42 shots under its belt already. Lets go for the fourth:
985.82
1005.56
858.44
1013.81
1018.59
995.39
988.00
1002.64
1008.49
863.10
1019.71
1017.90
1002.89
1019.96
Average speed: 985.74 ft/s (300 m/s)
Average energy: 34.5 (46.8 J)
Air left, see: "After fourth mag", down to about 150bar. That's still plenty, so lets do a fifth to get to the 70 shots the factory specced:
979.52
999.09
998.51
999.91
1004.22
997.36
996.54
991.15
1002.06
992.37
990.50
986.47
986.14
980.79
Average speed: 993.19 ft/s (303 m/s)
Average energy: 35.1 ft/lbs (47.5 J)
Air left, see: "After fifth mag". Again. about 25 bar for a magazine. Lets do another.
1021.86
850.72
992.61
989.77
983.18
974.71
971.42
955.93
950.90
941.43
935.03
934.60
927.44
912.41
Average speed: 953.00 ft/s (290 m/s)
Average energy: 32.3 ft/lbs (43.8 J)
Air left, see "After sixth mag". Still in the green even though the speed and thus energy are dropping off already. Lets do a last one, this is getting expensive in lead
884.86
888.76
883.57
878.50
875.33
869.48
867.05
848.40
863.22
859.60
855.05
838.29
849.11
851.74
Average speed: 865.21 ft/s (264 m/s)
Average energy: 26.6 ft/lbs (36.1 J)
Air left, see: "After seventh mag". Yeah, it's pretty much flat now. But hey...not surprisingly after 98 shots! That's two mags more than factory specs (70 shots in .22 at 40J).
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