brycelarson, on 25 January 2011 - 01:06 PM, said:
danath 34, on 25 January 2011 - 11:02 AM, said:
I did have one question, though. What happened at shot #346? It appears as if something was changed causing a few low chrony shots and higher SD values. However, this could be caused by paint size variation. Also what was shot #347? Was it a low shot? Is that why it was left blank?
the blanks are when we missed a chrono reading. Usually it's when the second eye on the chrono didn't see the ball. It happens sometimes. shots 61, 85, 320, 347 etc.
I kinda see what you're saying about 346 - but actually it's only 3 lower than 345. All guns have odd shots from time to time. This one is no different. I wouldn't try to read too much into any one shot - it's the means and SD data from groups of shots that really starts to have meaning.
yeah I was trying to get an idea of why the SD seemed to jump higher at that shot. But I can imagine the occasional oddball shots would do that sort of thing to a rolling SD.
Also thinking about the comment cockerpunk made about how sometimes cleaning the gun made it better, sometimes worse... I probably just missed it somewhere, but what was the method/schedule for cleaning the gun? Did you do it every x shots, or did you do it when you noticed consistency issues, etc? Because one test that would be interesting to do would be to test how often you really do have to break down and clean the gun. This is a widely debated topic. Some people clean their gun after every day of play religiously, some people do it once a year. I would be interested to see an experiment testing this. Maybe split it up into a couple/few tests. You could do one test for the reg(s), one test for easy to get to internals (such as the ram) and another test for the less easy to reach internals (such as valves). But this is likely a topic for a whole 'nother thread...