The 16.5" M77 mk2 compact would have some wicked muzzle blast I'd imagine. <img src="/ubbthreads/images/graemlins/confused.gif" alt="" /> Maybe not, I've never shot one, just handled one in the store. It would be a fine choice in 260, as would the Model Seven youth.

I'd try loading 120 gr. Barnes XLC's with H4895 powder. Should be able to make 2600 fps+ in the 16.5" barrel. Would do good work inside 200 yards, even on small elk.