The revised 1/700 Tamiya Yamato has many corrections on the original release (Which I am building). One is that they have added blast bags to the 18″ guns. But for those of us with old stock, or building some other model without blast bags, there is a solution. It requires some Blu-Tack, skill, and believe me, much better results can be achieved than what I will show here (Instead of skill, I got Fat Fingers:-)
Here’ the two pieces that combined will form the gun.
Assembled, you can see the gapping holes around the barrels
Roll some Blu-Tack between your fingers and flatten it out into a tube-shape so its about 1 1/2 inches long, and wrap it around the base of the barrels.
Then pull the barrels through the turret. The Blu-Tack will hold the barrels in place, and a small amount will protrude through the turret. This can then be shaped with a toothpick to make a convincing enough looking blast bag. Blu-Tack can also be painted.
Blu-Tack is very forgiving, if you botch it, just pull it out and start over.
And here is the finished blast bag painted.
