Final Fantasy XIV Database - Ffxivpro.com

Coming in abit late into the thread but for the record:

COR isn't the most ideal puller for the simple fact that their best guns are 600 delay and Quick Draw is restricted to 2 charges with a minute recast each. 50 seconds with capped merits, 45 seconds with Mirke that contains QD recast augment. Not to mention they are more busy at a distance shooting and running between melees and mages for buffs every 60 seconds to really keep a chain going past 5.

A Peacemaker is a viable option but cannot trump the simple effectiveness of a thief. For quick pulls i'd recommend a Leo Crossbow +1, which has a really low delay.