I don't know much, but I do know that the first rifle I ever reloaded for was a .270, and had good results overall. That said, I ran into an issue I'd love input on regarding twist rate, and maybe the responses will help you.
I live in California and non-lead is a thing. With regard to that I found that companies like cutting edge bullets and hammer have offerings in the 100 to 150 grain range if I recall correctly. Weight wise this is fine in .270, I think my grandad's favorite was a 145 grain projectile. That said lighter material makes for longer bullets, longer bullets need faster twist rates to stabilizer them. In my experience I had to stick to lighter bullets, I bought some 130's and the barrel (factory 1:10") wouldn't stabilize them.
I think, from my limited experience and overall lack of brain capacity, that there's a new realm to explore with some of these old standby caliber's. Re-barreled in a 1:9" or possibly faster and shooting monometal projectiles could bring the .270's speed to bear in a nice way.
Thoughts from those who know?