Very good thermal scope - ATN Thor 5 LRF 5-20x 320x240 12 Micron Smart HD Thermal Rifle Scope, 30mm Tube w/ Gen 5 Sensor

Perfect thermal for the money. Easy to set up and controls are very easy to understand and set up. The zeroing was easy. I use the special thermal targets, but you are able to use the bottle with the hot water. The built-in LRF is awesome! It provides super accurate data. With the ballistic calculator it makes from this scope the killing machine.