Well nobody claims that neither Tu-160 nor B1 can go supesonic for
5000 km. But why you skipped shorter range records? Unlike B1
Tu160 can go supersonic for distances of 1000-2000 km. The later
is very important for the battle applications particualrly
to hit and escape from fighters attention:


I skipped the shorter ranged records because the higher speed of the
Blackjack was never in doubt. I was questioning warload and range
which is why I quoted that particular record.