Tommy,
The SR51 looks BRIGHT! its too fat however. If PhillyRube's recommendation does not pan out, I think I am going to purchase a Jetbeam BC40 AND a Spark SL6-800CW XM-L.
PhillyRube's recommendation is a P60 drop-in. The reflector is too small to get any throw. It is a flood light.
The BC40 has some throw but is not that great. Think Fenix TK35. The Spark SL6 is a flood light.
People are confusing lumens with throw. You need an intense beam to get good throw. Beam intensity is measured in cd or lux @ 1 meter - not lumens.
I've measured the beam intensity (throw) of every light I've had in the last year (at least 50). If you want throw here are some choices:
Olight SR51
Olight M3X
Thrunite Catapult V3
EagleTac M3C4 single XML
4sevens Maelstrom X10 (smallest of all of these but also least throw)
Sumwayman M40A XML
Sunwayman T40CS
The Maelstrom X10 can do nearly 28k lux @ 1 meter while the best on this list will do about 45k lux @ 1 meter.
I have throwers that will do 120k lux @ 1 meter but those are much bigger lights.
For reference the best P60 drop-in will do about 10k lux @ 1 meter, the T20C2 MKII will do about 6k lux @ 1 meter, and the spark SL6 will do about 8k lux @ 1 meter. Now you can see why none of those are considered throwers. They are nice general flood lights.
A Great little thrower is the Lumapower D-mini with the TurboForce head and XRE emitter. It will do about 70k lux @ 1 meter. It does not have much spill at all though and is a pencil thin beam. The lights I listed above don't have quite as much throw but have a nice big hot spot with bright spill.