long/extended eye relief scopes

I'm trying to find a scope that'll give me an eye relief of at least 11 inches or so. I've found a few 2-7X factor ones but am trying to find one with a bit better zoom, preferably at least 12 or above.

This is going on a rifle with a large & exposed bolt, so the only way I can really mount is to the front of the receiver and with as much eye relief as possible. The current 2-7x I have sits about 13.5 inches away from my pupil.

Any one can point me in the right direction?

Cheers