but normal Aero wouldn't run adamant... maybe the occational one does, but usually they don't, because you want to use that speed and outspeed Starmie, Alakazam, etc.I'm using Adamant on both of them. For Jolly on Normal Aero vs Adamant Mega
252 Atk Life Orb Aerodactyl Stone Edge vs. 252 HP / 252+ Def Forretress: 105-125 (29.66 - 35.31%) -- guaranteed 4HKO
252+ Atk Aerodactyl Stone Edge vs. 252 HP / 252+ Def Forretress: 105-124 (29.66 - 35.02%) -- guaranteed 4HKO
and is the 2nd one Mega Aero or normal? you didnt write mega but I'm assuming it since you used a +att nature and no item.
anyways here are my calcs, though it seems that they might be one point too high... not that it matters for the comparison:
[tested on max Def+ Forretress (416 defense)]
Mega Aerodactyl, +Atk nature (gets 405): 107-126 damage
Aerodactyl, neutral Atk nature @ Life Orb (401): 106-125 damage

