Ballistics - Update .50BW ace_caliber with correct value.

[Laid3acK]

When merged this pull request will:

• Update .50BW ace_caliber with correct value fixed with Advanced Ballistics - Add support for multiple muzzles #11215.

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[Laid3acK]

The bug is still here with the base game.

• 10Rnd_50BW_Mag_F: initSptSpeed=580;
• class arifle_ARX_base_F: Rifle_Base_F: initSpeed=-1.125;
• class Secondary: Rifle_Base_F: initSptSpeed=0;

Effective .50BW muzzle velocity in-game should be 580m/s, not 652m/s (580*1.125).

Maybe an issue with class Secondary: Secondary ?

class arifle_ARX_base_F: Rifle_Base_F
{
    ...
    initSpeed=-1.125;
    ...
    class Secondary: Rifle_Base_F
    {
        ...
        initSptSpeed=0;
        ...
    };
};
class arifle_ARX_blk_F: arifle_ARX_base_F // "Type 115 6.5 mm (Black)"
{
    ...
    class Secondary: Secondary
    {
        ...
    };
};

Compared to "Promet SG 6.5 mm (Black)" and Slug, effective Slug muzzle velocity in-game 450m/s,
(if same bug MV 472m/s: 450*1.05).

// Magazine
class 6Rnd_12Gauge_Slug: 2Rnd_12Gauge_Pellets
{
    ...
    initSpeed=450;
    ...
};

// Weapon
class arifle_MSBS65_base_F: Rifle_Base_F
{
    ...
    initSpeed=-1.05;
    ...
};

class arifle_MSBS65_UBS_base_F: arifle_MSBS65_base_F
{
    ...
    initSpeed=-1.05;
    ...
    class UBS_F: Rifle_Base_F
    {
        ...
        initSptSpeed=0;
        ...
    };
};

class arifle_MSBS65_UBS_base_black_F: arifle_MSBS65_UBS_base_F
{
    ...
};

class arifle_MSBS65_UBS_black_F: arifle_MSBS65_UBS_base_black_F // "Promet SG 6.5 mm (Black)"
{
   ...
};