Driving bands,
Hi Dano,I am just hazarding a guess here,would a shrapnel shell be a projectile that needed extra stability during firing to stop it tumbling due to it being filled with shrapnel balls and possibly a little out of balance balistically,or again just guessing,a thin driving band on a heavy shell so put another driving band to stop gas leakage during firing,I am assuming a normal artillery shell would not be as heavy as one that is filled with shrapnel plus a bursting charge,the lower driving band is very close to the base of the projectile,could this shell have been fired using a seperate bag charge as there does not seem to be much of the projectile for the neck of the shell case to grip,hope my bit of sideways thinking makes sense,
Kind Regards,Don,