Originally Posted by RobF
So you shot two guns at different times or relied on someone else's setup. Hardly scientific.
Tell you what. Lets hire the tunnel for a day, 5 or 10 hurricane blowers. Clamp barrel down. Test 50 shots at 50m. Shoot with it on or off. If stripper takes less wind on the statistical average of the group to any measurable margin beyond the randomness of the group, I will pay. If not you pay. Shouldn't be a problem if you're happy to recommend a product that would cost someone near that expense
There's an easier and cheaper way to prove or disprove it - although not absolutely conclusive.
Do what Conor suggested - put a chrono out at 50m - and test with and without the air stripper - whichever retains more velocity is likely to be better in wind. (according to ballistic theory)