Match barrels are much like any other, fixed batch testing is the only real method of finding out what's best, that said I done this recently with my LP2 using R10 4.49 pistol, R10 4.50 pistol, R10 4.50 rifle, JSB match and RWS Geco's, whilst the R10 rifle were the best the difference was so little in the others I doubt it would have any real effect on my scores, interestingly though the Geco's came in 2nd best and yet are by far the cheapest at less than half the price of the others, my thought are that buying the Geco's and getting twice as many pellets for my money and practicing more will improve my scores far more than the most expensive pellets