I have both Leupold and Vortex scopes and they both work well, no complaints either way. I was in the market for a VX3i LRP 4.5-14x50 and chose to buy the Vortex Viper PST Gen 2 5-25x50. I can say doing extensive research and personal comparison with each, that the Vortex came out on top for my intended application . However for a hunting rifle such as my .270 I chose to go with a Leupold vx3 4.5-14x50 Boone & Crocket as it made the perfect scope for my application. I used to be a die hard Leupold fan but I do admit Vortex does make some affordable and quality glass (even if 90% of their scopes are made over seas) and the warranty is better than Leopold as they replace/repair with no questions asked.