Looking at the stats of players that have played the m103 pre-buff I average 200-400 more average damage blocked. So I guess the armor buff helped a little.
Was facing off vs a T30 and he bounced 2x on my upper plate as I angled around the corner. Then he started bitching about rigged RNG. GG boiiis. Facing pref 8 platoons is hilarious, especially is6s and KV5's. My 190mm lower plate says hi to your 175 pen.
