(The above numers were rounded to the nearest billionth of a square foot)
LOL!
I guess what all this shows is that the two cartridges are pretty close,and not to split hairs,but a guy might pick the Roberts if the focus is varmints and deer;and if he mixes elk-sized stuff into the mix those heavier 6.5 bullets may come in handy.Pretty hard to go wrong either way......