Heres someone who sells the 115 gr.bullets. Click the link and scroll down to the.243
Ps checkout the coeficiency of it also
Thats better than even a .300mag or 7mag
Oops forgot the link heres another one.
Barnes offers a 115 for the .243 ,heres the link go to products then select the barnes original bullets.
http://www.barnesbullets.com/
Heres the first one I tried to link. This is the one that shows awsome coeficientcy
http://www.bergerbullets.com/catalog.htm