well we always liked taking blades out in the woods and chucking them at trees from different distances to see how many pieces it breaks into at different distances or you could just wrap the back in tape where the 12 gram is going in at to make sure it doesn't split the gun apart when you screw it in.
or you could just wrap the back in tape where the 12 gram is going in at to make sure it doesn't split the gun apart when you screw it in.