  Using the formalism developed in a previous paper we analyze the cosmological
implications of our conclusions concerning the scaling behaviour of a network
of cosmic strings, in particular the idea that once gravitational back-reaction
becomes important the transient scaling regime so far explored by numerical
simulations will be replaced by a new `full scaling' regime, with slightly
different parameters. This has consequences for the normalization of the string
tension on all scales. We show how the new scaling solutions affect the
gravitational wave bound from nucleosynthesis and the milli-second pulsar, and
also describe the consequences from large scale structure up to COBE scales.
