use a decent 180 grain bullet like a Federal cast core, Hornady XTP or Buffalo Bore.
Heres a few links for these...
Ive also heard good things about Winchester Partition Gold 180g - but every time Ive tried to order em they arent in stock. so I dont know if they make em anymore
http://shop.reedsammo.com/product.sc?categoryId=39&productId=736
https://www.midsouthshooterssupply.com/item.asp?sku=00129P357J
http://www.midwayusa.com/eproductpage.exe/showproduct?saleitemid=946487