I don't think it would be a good idea to use a custom rifle for
lr shooting, since factory rifles are made according to the standards of the arms industry and there are rarely defective rifles in factories that are then returned. Your custom rifles may look good and shoot well, but you may have a problem with internal modules or accuracy, which you did not do according to standards but according to your feelings. Perhaps your technology is not quite perfect for making some rifles, who knows. Nevertheless, I would not advise you to stop producing your custom rifles, but simply investigate your problem and solve it so that everything will be fine in the future. Good luck friend!