Chap..
All we have here is a mutual back slapping excercise ...... I did this, my mate did that, we tried this, someone told me that...and now it is apparently accepted truth..there is NO science here, and yes...like for like I am not convinced at all. My experience says this does not make sense, but I am happy to be proved wrong if you can show me something more than a backyard test of 2 rifles!
There are far too many variables, nobody has properly sized pellets and barrel, hot and cold air from springers and PCP... bull***t...compress air and it gets hot, barrel efficiency, length,