If it had been a full charge with projectile... the muzzle pressure concussion blast would be quite significant... you wouldnt want to get anywhere near or beyond the muzzle plane for it would really give ya a shock... Having been hit with the muzzle side blast from a field 12pdr was quite impressive... a 24pdr seriously got your attention... the 32 pdr felt like you got hit with a baseball bat... cant imagine what that beast would/could do... Notice that the gun crew even firing the blanks, ran for cover inside the casemate... lol...

Frederick