How to effectively deal with this? Never encountered it until now and basically got mowed down by the guy every spawn. We couldn't even half health him before he got close, even with full team fire and he'd ram one of our dreads, nearly one hitting them. Naturally he'd then proceed to make wuick work of the dread and quickly retreat before we could manage to kill him, somehow. It seems a little broken that a ship can shrug off every hit from a full team and kill the biggest ship type in the game without breaking a sweat.
Drain, stasis, purge and disruptor will turn a ram in to free food. Especally the last two, as they reset the modules efectivly "turning off" the ram.