A Byron says: This is a hard question to answer but you can certainly even the odds. Firstly, check the twist rate of your rifle. Then take a quick visit to your selected bullet manufacturer’s website and locate the type of bullet you want to use. With any luck there should be an indication as to the rifle twist rates that that particular bullet requires to be sufficiently stabilised. Berger is very good at providing all the required data, but not every manufacturer will provide this info.
Having worked this out, select the weight appropriate to species and intended trajectory. If you fail to find suitable information on twist rates, the Shilen website provides all the data you will need to make a judgement dependent on your rifle. On the other hand, you will probably find that most bullet manufacturers load ammo to suit the most common twist rates, so that is always a good place to start.