Thrown Weapon

[DarkestSoul]

Can a character prof with a thrown one handed weapon make it large and use it as a Lg Thrown Weapon (-2 attacks for being Large on med character) throwing it 2 handed with 1 1/2 times str added?

[KingOfAnything]

Well, you aren't allowed to buy a large version. How are you planning to make it large?

In general, I would say no. A large weapon would be too unwieldy to throw effectively without further specialized feats.

[Illeist]

Large versions aren't always available, but they are, in fact, available for purchase.

Thrown weapons, regardless of their handedness, only add the Strength modifier once and require a full-round action to throw. With the feat Two-Handed Thrower, however, your damage jumps to 1.5 Str and you can throw as a standard. You'll take the -2 penalty to attack rolls from the size difference, but nothing prohibits you from throwing large weapons.

Whether or not this is a viable tactic I leave to you to find out.