Deep in brimhaven dungeon, use a map. Bring an axe and a few thousand gp.
Bring about 3x prayer pots as antifire pots.
Drop occasionally addy plates / javelins.
Keep an eye on prayer, and look out for "Your resistance to dragonfire is about to run out."
Wild dogs will attack for a bit, but soon give up.
REMEMBER ANTI DRAG SHIELD (of course!)
Best to just bury all d bones, and alch other higher metal drops.
bronze drags bronze dragons bronze dragon
iron iron steel steels