I'm going to suggest a high resistance earth causing the issue, (its always the earths with a land rover :rolleyes: ) enough of a circuit to register on the meter but not enough to actually power anything. Try a good either direct to something...
Spooky, 🤔.
Is the bulb trying to draw more power than the wires are sending, but they have enough power to work the multi meter.
If you had a length of wire run from the front indicator to the rear and see if that will flash the bulb then you...
Yes it is - the gun is consistent, the ammo is consistent (unless you keep changing it) and the scope is consistent (might be ‘out’, but will still be consistent).
The shooter and the wind are the variables.
That’s some claim - over what distance?