▁December , ▁Ch asse ur ▁put ▁to ▁sea ▁and ▁sh aped ▁a ▁course ▁for ▁the ▁West ▁Ind ies . ▁There , ▁she ▁took ▁a ▁succession ▁of ▁pri zes . ▁On ▁ 2 5 ▁February ▁ 1 8 1 5 , ▁she ▁ch ased ▁what ▁appeared ▁to ▁be ▁a ▁weak ly ▁armed ▁co aster ▁but ▁which ▁turned ▁out ▁to ▁be ▁a ▁Royal ▁Navy ▁cru iser . ▁Und a unted , ▁Bo yle ▁rac ed ▁to ▁the ▁attack ▁and , ▁after ▁a ▁sharp ▁ 1 5 - min ute ▁fight , ▁captured ▁HMS ▁St ▁Lawrence . ▁He ▁was ▁wounded ▁during ▁the ▁capture ▁and ▁concluded ▁his ▁final ▁cru ise ▁at ▁Baltimore ▁on ▁ 1 8 ▁March ▁ 1 8 1 5 . ▁ ▁It ▁was ▁estimated ▁that ▁Bo yle ▁prof ited ▁in ▁a ▁range ▁of ▁$ 3 0 , 0 0 0 ▁as ▁a ▁private er ▁during ▁the ▁War ▁of ▁ 1 8 1 2 . ▁ ▁As ▁a ▁commander ▁of ▁Ch ass uer ▁Capt ▁Bo yle ▁placed ▁a ▁significant ▁emphas is ▁on ▁dr ills . ▁His ▁crew ▁pract iced ▁over ▁and ▁over ▁again ▁handling ▁the ▁s ails ▁and ▁operating ▁the ▁guns , ▁which ▁paid ▁off ▁during ▁numerous ▁engag ements ▁with ▁the ▁enemy ▁vessels . ▁▁ ▁Late ▁career ▁ ▁After ▁the ▁war ▁Bo yle ▁returned ▁to ▁merc ant ile ▁service ▁between ▁Baltimore ▁and ▁ports ▁in ▁the ▁West ▁Ind ies ▁and ▁South ▁America . ▁Bo yle ▁also ▁was ▁one ▁of ▁a ▁number ▁of ▁ 1 8 1 2 ▁capt ains ▁who ▁engaged ▁in ▁private ering ▁under ▁letters