yea, about shorter cartridge..more accurate...blah, blah. Thats only a general statement of course. Different rifles will always shoot different with different loads and some shoot better than others. Ill take back the "any gun can shoot accurately on a bench" thing as I worded it wrong.
I meant that 2 equal rifles(if that exist) can both be accurate on the bench, though some are just naturally more accurate than others. I'd say it has virtually no effect on real life, given one shooter is better than another and one rifle is better than another.