[CrazY.]

As an expected, now it worked but had no effect. Any idea?

public plugin_precache()
{
    OrpheuRegisterHook(OrpheuGetFunctionFromClass(g_pszNameGalil, "GetItemInfo", "CBasePlayerItem"), "CGalil_GetItemInfo_Post", OrpheuHookPost);
}

public CGalil_GetItemInfo_Post(this, hItemInfo)
{
    if (!IsMagnumDrill(this))
        return;

    static iMaxClip, iMaxAmmo;

    iMaxClip = get_pcvar_num(g_pCvarDrillMaxClip);
    iMaxAmmo = get_pcvar_num(g_pCvarDrillMaxAmmo);

    OrpheuSetParamStructMember(2, "iMaxClip", iMaxClip);
    OrpheuSetParamStructMember(2, "iMaxAmmo1", iMaxAmmo);
}