kciH has told you all you need to know..just some experience from my side..My 14" likes the heavy boys...300 grainers shoot the best so far (they are the heaviest I have tried). 250 Grainers tend to shoot pattern in my Contender,but do very well in my 71/2" Bisley Blackhawk..the Speer 260 Jacket Soft point shoot okay in both..but the Contender really shines with the 300 Grain XTP and the Lee Hand poured bullets.