I've seen that listing on the SNS site too and was surprised to see them recommend N310 but not Bullseye.....I use BE anyway. For .45, I use either Bullseye or N310. For .40 Win 231/HP38, and 9mm either N320 or Sport Pistol. I'd never tried Sport Pistol until I noticed it on the SNS site notice. Works great and the loads I have developed only need about 0.10gr more powder than a comparable load of N320 to work for me in all my 9mms, whether CZs or 1911s.