The 200's are more than enough for whitetails. If you are not sure about the weight, measure the length and diameter and post it and someone will be able to verify it. The 200's will be .400 diameter, the 250 and 300 will be .452 diameter. There should be close to 1/16" difference in the diameter. I don't know the lengths of each off the top of my head but I'm sure someone can check that for you.