He didn't say he could do it - or has done it - he said the rifle was capable of it. Semantics, my man....
I've a 30-06 easily capable of 1,000 yard shots - gives 3 shot, inch groups, at 300.
Unfortunately, my capability gets toiletry at 500.or so...
And if one is a hunter, rather than a shooter, that's enough, as is a 30-06.
I'm carrying the 725 in .260 more and more... Old age sucks.