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so there is a redneck rangefinding method I was shown years ago which works really well when spotlighting and I assume will also work with both night vision and thermal
the old lazer beam...if you...

a firearm is always loaded...you know that..... unless it has no bolt in it...its a loaded firearm full stop.

but just like strapping said spotlight to rifle....where ever you are looking you are pointing a loaded rifle....