How to change the CFrame for a raycast shotgun?

I been trying four hours on how to change the raycasts CFrame to be like a funnel shoot and spread.

function shot(player,mousehit,tool)
    --mousehit = mouse.Hit.p
    math.randomseed(tick())
    local spread = 60
    local ray = Ray.new(tool.Handle.tip.CFrame.p, (mousehit - tool.Handle.tip.CFrame * CFrame.Angles(math.random(-120,120),math.random(-120,120),0).p).unit * 30)
    local hit, position = workspace:FindPartOnRay(ray, player.Character, false, true)
    print(hit)
    local beam = Instance.new("Part", workspace)
    beam.BrickColor = BrickColor.new("Black")--customTrail)
    beam.FormFactor = "Custom"
    beam.Material = "Neon"
    beam.Transparency = 0.25
    beam.Anchored = true
    beam.Locked = true
    beam.CanCollide = false 
    print(spread)
    local distance = (tool.Handle.tip.CFrame.p - position).magnitude
    beam.Size = Vector3.new(0.1, 0.1, distance)
    beam.CFrame = CFrame.new(tool.Handle.tip.CFrame * CFrame.Angles(math.random(-120,120),math.random(-120,120),0).p, position) * CFrame.new(0, 0, -distance / 2) 
    print(spread)
    game:GetService("Debris"):AddItem(beam, 0.1)

    if hit then
        if hit.Parent:FindFirstChild("Humanoid") or hit.Parent.Parent:FindFirstChild("Humanoid") then
            if hit.Name == "Right Leg" or "Left Leg" or "Right Arm" or "Left Arm" or "Torso" then
                hit.Parent.Humanoid:TakeDamage(pistolStats.Damage)
            end
            if hit.Name == "Head" then
                hit.Parent.Humanoid:TakeDamage(pistolStats.HeadShot)
            end
            if hit.Name == "Accessory" then
                hit.Parent.Parent.Humanoid:TakeDamage(pistolStats.Damage)
            end 
        end
    end
end