The 17 RC will throw a lot of red flags to schools. You'd prolly get in to a few expensive private schools, but to be safe, I'd retake and push hard on the RC improvement (but keep that chemistry up! well done!)
Solid scores! I spoke with the assistant dean at UNMC and he mentioned that they do look at reading comprehension when evaluating applicants. Other schools will vary though, so I would email schools your considering and ask if the 17 RC would make an impact to your application.