Indeed. From what I've seen, regular blanks are recommended for silly things like the golf ball launcher and the grenade launching blanks are not. I don't plan to muck around with anything larger unless I come across a dummy grenade that actually belongs to the rifle and even then I would hesitate.The cartridges used for grenade launching aren't ordinary blanks. They were specially formulated to keep the pressures within tolerances.
No2 Mk 1** Albion Motors 1942
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