Whiscombe Rifles Specifications |
| Model# | No-Strokes | Calibres | Stroke[1] Weight | Stroke[2] | Stroke[3] | Length of Pull | Weight of Rifle |
| JW-50 FB MKII | 2 | .177,.20,.22,.25 | 20 lbs | 30 lbs | 14" |
sporter: 9.75 Lbs
Thumbhole: 10.5 Lbs |
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| JW-65 FB MKII | 2 | .177,.20,.22,.25 | 25 lbs | 40 lbs | 14" |
sporter: 9.75 Lbs
Thumbhole: 10.5 Lbs |
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| JW-80 FB MKII | 3 | .177,.20,.22,.25 | 25 lbs | 35 lbs | 45 lbs | 14" |
sporter: 9.75 Lbs
Thumbhole: 10.5 Lbs |
Independant test results courtesy of US Airgun -
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JW-80 MKII Accuracy Results
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| Pellet | 20 Yards | 30 Yards | 40 Yards | 50 Yards | 60 Yards | 80 Yards |
| .177 (7.9gr.) | .088" | .267" | .457" | 1.137" | 1.887" | 2.177" |
| .177 (10.5gr.) | .071" | .282" | .392" | .532" | .796" | 1.514" |
| 5mm Premier | .136" | .270" | .388" | .495" | .751" | 1.376" |
| .22 Premier | .118" | .292" | .445" | .598" | .887" | 1.556" |
| .25 Magnum | .197" | .366" | .586" | .667" | 1.158" | 2.280" |
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Average of ten 5 shot groups at each distance from a bench rest
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Muzzle Energy Results - Models 50, 65, 80
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| JW50-FB MKII | JW65-FB MKII | JW80-FB MKII | ||||
| Pellet | Velocity | Power | Velocity | Power | Velocity | Power |
| .177 Crosman Premier 7.9gr |
820 fps (UK restricted)
875 fps (Unrestricted)
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11.8 Ft lbs
13.5 Ft lbs |
1025 fps | 18.5 Ft lbs | 1175 fps | 24 Ft lbs |
| .177 Crosman Premier 10.6gr | Not Recommended | 850 fps | 16.8 Ft lbs | 975 fps | 22 Ft lbs | |
| .20 Crosman Premier 14.4 gr | Not Recommended | 785 fps | 19.5 Ft lbs | 900 fps | 26 Ft lbs | |
| .22 Crosman Premier 14.4 gr |
610 fps (UK restricted)
675 fps (Unrestricted) |
11.8 Ft lbs
14.5 Ft lbs |
830 fps | 22 Ft lbs | 950 fps | 29 Ft lbs |
| .25 F.T. Special 20gr |
515 fps (UK restricted)
600 fps (unrestricted) |
11.8 Ft lbs
16.0 Ft lbs |
735 fps | 24 Ft lbs | 840 fps | 31 Ft lbs |
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Average of 10 consecutive shots 6' from muzzle (Oehler 33 Chronograph)
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