Not sure what T/C offers, but 7-08, 308, 7x57, etc. etc. are all good, and a good step up from the 243. Of those I'd get the 308. If you load your own, you could do a lot with it. I load some milder rounds for the wife in a Savage youth model. If you're only looking for a little step up, 260 Rem. Not much recoil at all.