Bushnell has narrower FOV and only focuses to 75y, it also has a 50mm objective vs. 56mm. You didn't mention it but if you have the non-illuminated DMR II that may be another factor. If any of those pose an issue for you then the Vortex might be the better choice. Both scopes are known to be rock solid mechanically so it may come down to nitpicking certain features. If you don't care about the weight, I think the Gen II 4.5-27x56 offers a better overall package than the DMR II.