flash and bang?

Towed Artillery, Wanted, For Sale,(NO EBAY ITEMS) and Knowledge Base
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brian in denver
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Location: denver co.

flash and bang?

Post by brian in denver » Thu Mar 13, 2014 12:04 pm

anybody got a clue what GR stands for? ground ranging? how about the missing numbers?
GR-1
GR-2
GR-3 sound ranging
GR-4 Flash ranging
GR-5
GR-6 sound ranging
GR-7
GR-8 sound ranging
GR-9
GR-10
keeping it strac here boss
I hate aquaphobic horses ;)


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