I had the 4200 Elite 2.5-10x40 on my 270 for years too and it was about perfect for me at that time.
These days I sometimes stretch shots further and I prefer some form of BDC reticle, prefereably linearly demarcated in mils but I also run some of those reticles that are supposedly matched to a particular cartridge.
They work ok as long as you actually check the subtensions at the intended power you will shoot them at.
Sorry I drifted off topic a bit...
I tend to agree that a fixed 6x with a decent dot reticle would be good for your 270.
