Is nobody going to state the obvious? :fie:
The faster the cartridge is, the faster the shot arrives at the target.
If you don't believe you can tell (feel and see) the difference, treat yourself to a box of something like Black Gold/World Cup/RC4 etc. and try it for yourself.
I agree it makes little or no difference to lead requirements over sporting distances, but there is a certain "SNAP" that you get with a quality cartridge that is missing from the average brands which are rightly popular for their "thrifty" characteristics.
Personally I want to perform at my best, so I use the best consumables. I'm a rubbish shot really, but I keep putting in half reasonable scores. Work that out for yourself??? :sarcastic: