Roland knew what the Pearl of the Northern Region was referring to.
He had encountered many technical difficulties during the manufacturing process of the God's Stone bullet, such as the caliber and casing. He was trying to make the God's Stone as large as possible, but large stones normally generate a large anti-magic area. Also, a large caliber weapon would inevitably be heavier than normal ones and was a lot harder to hide, transport, and use.
In the past week and after numerous tests, Anna, Agatha, Lucia, and Andrea had finally nailed the parameters of this new weapon.
To make sure that an equal force was applied to the bullet, the God's Stone of Retaliation was shaped into a cylinder with a width of 30mm coated with copper and equipped with a sharp bullet head. The bullet itself had a caliber of 35mm.
This was the only way the God's Stone inside wouldn't be crushed by the gunpowder.
