OK, I've been leading with one of these, 61k tons with 200 5x8 CIWS and 50 layers of armor, to deal with Precursors. I ran into one system with more Precursor ships than I was used to, and I had to send my fighters back to reload their missiles, leaving only the Brick (that's it's name) to take fire for a while...
Well, they ran out of missiles... so they rammed it:
Brick 001 hit by 310 points of damage from Ramming Attack
The ship has no shields
All damage absorbed by armor
Beshaba 001 hit by 124 points of damage from Ramming Attack
Beshaba 001 has been destroyed
I just had to share that with somebody. This particular Brick has been on point for several enagements and had already taken hundreds of points of damage... and then this.
SO satifying. :-)