How to redirect from wp-admin/edit.php to a frontend page for specific custom post type?

OK, this, put in functions.php works for me, based on this question and answer:

/* Send users away from wp-admin/edit.php to page with ID 999
  for post type my_post_type */

add_filter( 'parse_query', 'filter_post_edit_screen' );

function filter_post_edit_screen($query) {
    global $pagenow;

    if (is_admin() && $pagenow=='edit.php' && $query->query["post_type"] == "my_post_type"){
     wp_redirect(get_permalink(999));
     exit;

    }
    return $query;
}

don’t know whether it is clean to call wp_redirect() for this hook but don’t see why not.