While looking at the class spells on the forum, I noticed Rangers have Bull's Strength in PotM, but not in 3e, 3.5e, or even NWN. This on top of Ram's Might does give them a lot of strength, but I also noticed Bards don't get Bull's either, per the SRD.
Then I started looking to see what else they get in-game but not in the PnP, and it turned into a lot more effort than I'd expected:
Bull's Strength
Bull’s Strength, Mass
Bear's Endurance
Bear's Endurance, Mass
Owl's Wisdom
Owl's Wisdom, Mass
Keen Edge
Magic Weapon
Greater Magic Weapon
Mage Armor
Mass Mage Armor
Protection from Alignment
Magic Circle Against [Alignment]
Remove Disease
Sound Lance
Gust of Wind
Summon Creature I
Summon Creature II
Summon Creature III
Summon Creature IV
Summon Creature V
Summon Creature VI
Ice Storm
Amanuensis
Ironguts
Cure Minor Wounds
Find Traps
Healing Circle
I don't know what to do with this information, or if it even belongs here. It would seem Bards have a lot of things they don't have in 3.5, a lot of which have contributed to them being the melee threat they are on the server. To be totally circumspect I'd also have combed through their 3e spells, and sifted out which spells they should have as 3e, which they should have in 3.5, and which they have in both or neither. I might do that, but thought I'd see if there's a forthcoming explanation first that would make it unnecessary.
But, Rangers definitely don't have Bull's, in any source I saw. I suspect when Bear's and Owl's were added in PotM (since they're absent in base NWN), Bull's was thrown in erroneously, or with a specific justification.