Hunting Light Recommendation Please

[Portland Jon]

I have loads of land to shoot on and would like to go out lamping. Please can anyone recommend a reasonably priced torch that I can attach to my air rifle so I can shoot in the dark. It needs to have the following attributes.

• Beam of at least 100 yards so I can spot quarry.
• Focusable down to a fairly tight spot.
• Be self contained with no external battery.

I have a Petzl head torch which is pretty good and I would maybe like to upgrade the bulb in this as well. It is a 6V one with the battery pack that goes in my pocket. I am not very up to date on all the new jargon so please go easy on me.

Thanks

Jon