The problem is that the design of this model is based on very little historical evidence, as I warned earlier. Read my lips: not the modelmaker is making mistakes here, but the designer did. Either the deck is too narrow or the gratings are too wide, or the size of the gun is exaggerated and maybe all three of them. Of course a grating cannot hold a cannon, but imagine what happens if the wheels of a guncarriage, thrown back by the recoil of the shot hits a coaming. My answer was right ( confirmed by many authentic models) but reality does not match with this design. The gun’s breeching only allowed the carriage to roll back up to the grating, not over