Can someone explain why my gun bullet doesn't go straight? [Unanswered]

This is a part of my gun script, which obviously shoots the bullet. I've tried many things, but this bullet will not go straight. Instead, it's turned sideways. Help? I also get no errors whatsoever.

function fireBullet(d)
	local bullet = Instance.new("Part")
	bullet.FormFactor = "Custom"
	bullet.Size = Vector3.new(1.5, 0.35, 0.35)
	bullet.BrickColor = BrickColor.new("White")
	bullet.Position = tool.Handle.Position + (d * 5)
	bullet.Velocity = d * 125
	
	local s = script.RemoveBullet:Clone()
	s.Disabled = false
	s.Parent = bullet
	
	local BrickMass = bullet.Size.X * bullet.Size.Y * bullet.Size.Z
	local BrickWeight = BrickMass * 196.2
	
	local force = Instance.new("BodyForce")
	force.force = Vector3.new(0, BrickWeight, 0)
	force.Parent = bullet
	
	bullet.Parent = game.Workspace
end