| Trikk |
| Frankthedm |
The certainly are NOT vastly different. They are an obvious progression of one another and are the same type of bonus (Dexterity) and so should not stack.
That said the opportunity cost of requiring a Ready is high enough that allowing them to stack would not be a problem.
Deadshot (Ex): At 3rd level, when a crossbowman attacks with a crossbow as a readied action, he may add 1/2 his Dexterity bonus (minimum +1) on his damage roll. This ability replaces armor training 1.
Greater Deadshot (Ex): At 11th level, when a crossbowman attacks with a crossbow as a readied action, he may add his Dexterity bonus (minimum +1) on his damage roll. This ability replaces armor training 3.