Question about bullet mods

[shadowspectorgaming]

Im back at it again. So ive been looking into bullet mods. Ive been trying to make the bullets look like arrows. Im assuming the way bullets in this game work is circular in shape and thats why they come out look all perfect and rounded the way they do. But when I put in my arrow mod, it basically duplicates the arrow into two different positions as seen in the picture. Is there a work around on this or will it just not work the way I want it to because of the whole circular concept

Edit: maybe im barking up the wrong tree? Im currently modding the bullet.xvm file. Maybe there is somewhere I need to go. Perhaps I need to make a custom mod file but I dont have the file number for regular green bullets
Also...anyone know where to find the effect/bullet type of the rambling may?