Is this an efficient way to handle bullet travel on the server?

Using raycasting every frame on the server, I'm aware this completely ignores the size of the bullet. If I wanted to incorporate that would it be wise to just unanchor the bullet and use velocity with a touch listener? Or I could incorporate EgoMoose's Region3 module. Any ideas?

---@param origin CFrame
	---@param whitelist table<int, Instance> 
	function Class:Launch(origin, whitelist)
		local start = tick()
		local raycastParams = RaycastParams.new()
		raycastParams.FilterDescendantsInstances = whitelist or {}
		raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
		raycastParams.IgnoreWater = true
		
		local result = nil
		local yVelocity = 0
		while tick() < start + self.Lifetime and not result do
			local step = RunService.Stepped:Wait()
			local gravity = (workspace.Gravity / 196.2) * 9.807
			local drop = (gravity / 2) * math.pow(step, 2)	--drop = gravity/2 * t²
			
			yVelocity = (yVelocity + drop)
			local target = (origin * CFrame.new(0, 0, -self.Speed * step)) - Vector3.new(0, yVelocity, 0)
			local rayResult = workspace:Raycast(origin.Position, (target.Position - origin.Position).Unit * (self.Speed * step), raycastParams)
			
			if rayResult then
				self.Projectile.CFrame = CFrame.new(rayResult.Position, target.Position)
				if rayResult.Instance then
					result = rayResult
				end
			else
				self.Projectile.CFrame = CFrame.new(target.Position, origin.Position) * CFrame.Angles(0, math.rad(180), 0)
			end
			
			origin = target
		end
		
		print("Projectile took", tick() -start, "seconds")
		
		if result then
			print(result)
			local surface = self:GetSurface(result)
			print(surface)
		end
	end

I would personally use a BodyPosition with a touched event to handle this, you can probably also use the touched event with the tween service which is easier to work with. Raycasting is better in order to predict a target rather than for collisions

Your script doesn’t work because the function is not local.