Yes Sierra will send you anything you want up to two chamberings at a time I believe. Hornady will send you a 'by chambering' hand written tech sheet which is ultimately used to generate their loading books. I have a three ring binder full of that stuff. Usually I got it when I bought some new chambering for which the data hadn't been published yet.
ie .204 Ruger, .260 Remington and some newer style bullets.