I have never used N320 but do use Titegroup for my 9 loads. I'm loading 147's with 3.5 gr (If I remember correctly) of Titegroup. When compared to any sort of major load, this is a joke. Shooting doesn't get much lighter. I agree with Steve that it does leave the brown haze on my gun, but I don't care - it wipes off easily. With the low recoil, low cost and reliability, I have no reason to check out any other powders. Plus, I use it for my 38 Spcl steel loads as well.