- Joe_D
Found this article,
Not sure where they got "105mm Recoiless Shells" from.
Probably a historical reference to what the author was familiar with. 105mm RR's (and some 106's and even 105mm howitzers) fairly littered the intermountain west for avalanche control, usually in road passes and ski areas. Now the ski areas mostly use propane-fired charges or delivery by hand and helicopter, but a few of the old guns are still out there rusting away.