Mate it's a nice idea and I didn't mean to rubbish the idea. It's just that if someone thinks Milbro Caledonians group well then all that tells us is that they don't know what grouping well is and it could lead to some poor bugger going out and buying some!
The thing about fidning the best pellet is that it has to be done from a bench or in some way supported so as to take as much of the a shooter out of the equation.
That given, providing group sizes
is helpful and gives some frame of reference.