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A bit of chronographing

December 30 2011 at 2:45 PM
prewar  (Login prewar)

I had the Skan chrono out this afternoon and put a few of the old BSA's through it out of interest. This was just a really quick couple of shots to see roughly what they are doing. All .177 and all with light flat head pellets (7grain)

1906 Lincoln Jeffries Standard 640 fps / 6.4 ft/lb
Improved Mod D Light Pattern 630 fps /6.2 ft/lb
Improved Model D Standard 700 fps / 7.7 ft/lb
1930's Light Pattern 640 fps/ 6.4 ft/lb
1930's Breakdown Pattern 720 fps / 8 ft/lb

 
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