Help with Roblox Bullet movement and hit detection?

So I've been spending a bit of time trying to make some bullets to work for the guns used in a game I'm helping out with... After some issues Cframe's not being the greatest, and with Tween making it smoother (not actually implemented as of yet as I haven't worked with the service) but not fixing the issue I was looking to explore other options. It's fairly common knowledge that 2 anchored objects cannot touch. The issue is, both objects have to be anchored, as one is walls, and if the bullets are not anchored, they go under the effect of gravity far too quick. So a simple solution I have thought of is applying a body force to negate gravity. However when shooting at angles up or down, I'm not sure how realistic this is.

That became an option due to the issues I had with using :GetTouchingParts(), as the bullets start by touching the gun's handle, and then may make contact with each other as there is a gun with a multi-shot spray, and I've not really seen a good way to filter out certain touching parts.

The other option there is, is using FastCast. From reading the site and looking at the module scripts it seems really great, however being fairly new to scripting, is incredibly overwhelming and I have absolutely no idea where to start.

What I'd like to know is whether the bodyforce to negate gravity is actually feasible, and by combining that with tweening will work well enough (the max server size is only 6 players so it won't be overwhelmed with bullets), or whether changing to fast cast is really the only way forwards. And if that is the case, any pointers on how to implement it would be extremely helpful.

Here is the code for when the gun is fired and a bullet is created (which deals with getting the bullet data for that gun and also directing the offset for the spray of the bullets:

local GunData = require(game.ReplicatedStorage.GunData)
local rep = 1
game.ReplicatedStorage.ShootGun.OnServerEvent:Connect(function(Player, TargetLocation, Handle)
    if Player.Character == nil then
        return
    end

    if Handle then
        local Tool = Handle.Parent
        if Tool:IsA("Tool")then
            if Tool.Parent == Player.Character then
                local relevantData = GunData[Tool.Name]
                if relevantData ~= nil then
                    for count = 1,relevantData.REP do
                        Handle.Sound:Play()

                        local Beam = Instance.new("Part", workspace)
                        Beam.Color = relevantData.COLOR
                        Beam.FormFactor = "Custom"
                        Beam.Transparency = 0.25
                        Beam.Material = "Neon"
                        Beam.Anchored = true
                        Beam.CanCollide = false
                        Beam.Name = "Bullet"
                        Beam:SetAttribute("Speed",relevantData.SPEED)
                        Beam:SetAttribute("Damage",relevantData.DMG)
                        Beam.CanTouch = true
                        Beam:SetAttribute("Shooter",Tool.Parent.Name)

                        local Distance = (TargetLocation - Handle.Position).magnitude
                        if Distance >= relevantData.RANGE then
                            Distance = relevantData.RANGE
                        end
                        local NewAngle = CFrame.Angles(math.rad(math.random(-relevantData.ANGLE,relevantData.ANGLE)),math.rad(math.random(-relevantData.ANGLE,relevantData.ANGLE)),math.rad(math.random(-relevantData.ANGLE,relevantData.ANGLE)))
                        Beam.Size = Vector3.new(relevantData.WIDTH, relevantData.WIDTH, Distance)
                        Beam.CFrame = CFrame.new(Handle.Position, TargetLocation) * CFrame.new(0, 0, -Distance/2)
                        local offset = Handle.CFrame:Inverse()*Beam.CFrame
                        local handleStartCFrame = Handle.CFrame
                        local newCFrame = handleStartCFrame*NewAngle
                        Beam.CFrame = newCFrame*offset


                        local moveBullets = script.bulletMovement:Clone()
                        moveBullets.Parent = Beam
                        local hitBullets = script.hitDetection:Clone()
                        hitBullets.Parent = Beam
                        Beam.Parent = game.Workspace["Futuristic Tycoon"].Bullets                       


                        if relevantData.DELAY ~= 0 then
                            wait(relevantData.DELAY)
                        end
                    end
                end


            end
        end
    end

end)

Here's the movement script:

scrpar = script.Parent
speed = scrpar:GetAttribute("Speed")
while true do
    if scrpar.Name == "Bullet" then
        wait()
        for count = 1,20 do
            scrpar.CFrame = scrpar.CFrame + scrpar.CFrame.lookVector * speed
            wait()
        end
        scrpar:Destroy()
    end
end

Finally, the hit detection... only detects humanoids for now as they are not anchored:

local Players = game:GetService("Players")
local scrpar = script.Parent
local damage = scrpar:GetAttribute("Damage")
local shooter = scrpar:GetAttribute("Shooter")
scrpar.Touched:Connect(function(hit)
    print("touched")
    local humanoid = hit.Parent:FindFirstChild("Humanoid") or hit.Parent.Parent:FindFirstChild("Humanoid")
    if humanoid then
        local player = Players:GetPlayerFromCharacter(humanoid.Parent).Name
        if player ~= shooter then
            humanoid.Health -= damage
            scrpar:Destroy()
        end
    end
end)