I have detuned my TX-200 in .177 to 12 FPE with a Vortek kit, and decided to upgrade my scope. Since it shoots milder and sweeter now, I decided to risk a Nikon EFR to replace the UTG glass. Anyone care to guess how many trigger pulls with 7.33 grain pills before new scope gets crazier than a 3 year old on Mountain Dew and Hershey bars?