I don't think anyone is expecting that you take your 680fps springer out to 100 yards in gale-force winds that vary every second in direction. Not even excepting that on a calm day at 100 yards with a 680fps springer. Merely commenting on your well-planned and well-executed test at 25 yards: that it is inconclusive at that distance. Or, if you want to look it this way: it was conclusive barring any other data contrary to it. Meaning...until someone takes it out to at least 50 yards (as I noted that previously), any flyers or inaccuracies attributable to differences in pellet length, skirt/head deformation/irregularities may not be detected unless those differences are already absurd to start with (i.e. a real lousy quality pellet tin).
The Yrrah-roll helps with finding uniform pellets dimensions (minus weight). As I noted previously, at 50 yards and beyond weight does come into play and has to be sorted. Some may disagree, but JSBs and Barracudas are fairly close in quality. Just like AAs and JSBs are almost the same dimensions and are made by the same manufacturer. You have proved that your control group is valid and that set a conclusive baseline for the rifle/shooter/pellet. But again, using such uniform quality pellets at such short distances makes (25 yards) did not detect any measurable difference and you succeeded proving that exactly and solidly. Thank you for putting in all the work and time. I do not think anyone would argue that this was not an educational and constructive exercise.
Every comment on this thread, maybe even the funny or pompous comment (whichever way you want to take it) by thomasair were in good faith and were given with respect. If you only ask for (and accept) opinions that you already pre-determined to agree with, why even post and open the thread for others to comment?
I do consider your opinion. I am not required to accept it until you show me data which can support it. You believe the differences in the pellets do not show up at 25 yards from a spring rifle. Clearly the difference between an H&N FTT @700 fps and an H&N Baracuda @688 fps are
readily apparent from a springer at that distance.
One commenter asked about the rolling setup. I told him I thought my setup was sufficient. I explained why. Then I walked away and reconsidered my position. I've already gone out into the shop and selected a piece of glass. I have not told him yet. I am going to run the test with better designed roller. I am inclined to believe that a set of smaller "catch boxes" may give an insight as to why
all three of the test groups are slightly smaller than the control. It could be a fluke or it might mean something. All I can do is run the test and give you the data. I am not here to tell you what to think.
Now then, when one rolls pellets, one sees they fall into a normal curve. That is many fall towards the middle, less towards the edges. That curve is conclusive proof that we are measuring "SOMETHING". Not one of you renouned experts has correctly told me what it is. That is to say, nobody has told me WHAT we are classifying correctly. We have seen that sorting them does not improve the perfomance, are you arguing that it does?
We see that my test has not detected a significant improvement BUT we also see that there is something being classified. That normal curve is absolute proof that the test does not produce a random result. You don't get a normal curve with random data. Now then we also see that whatever it is sorting out, that thing is either not being sorted with enough resolution to produce distinct results or as you assert the difference is not showing up at close range. I think maybe I'll trust what the numbers tell me and refine the test. It is my time right? When you actually SHOW me numerical evidence that I am unable to discover that difference at 25 yards with a QUALITY spring rifle, I'll drag out my PCP, which by the way can not shoot ten shot groups half the size of a dime at 25 yards.
When you get push it doesn't mean your opinion is not heard. You have heard my opinion. You have discounted it. I have made my argument in reply. I have heard you state your belief. When you actually show me measurements they will speak a lot louder.
ALL OF THAT ... with respect.
