I am assuming you are a new 3rd year medical student doing clinical rotations. Just a few insights:
1. The avg Step 1 for a matched applicant last cycle was 241. You're right in the middle (or just slightly below average) and in prime position to match (assuming no red flags) so long as you have a good mix of programs (high tier ("top 30"), mid-tier, and some lower ranked community programs.
2. I love radiology and would be exciting for you to choose it, but go through your third year rotations with an open mind in each and every single one. You may find out you enjoy something else, or you may not. Either way, give each rotation a chance.
3. Do your radiology elective/rotation early fourth year so you can get letters. Typically radiology applicants have 4 letters (one rad, two clinical, and one other). Don't submit less than two non-radiology, clinical letters.
4. If you want to help yourself more going forward, do as best as you can during your rotations and try to improve upon your Step 1 score with Step 2. Not all radiology programs weigh highly (or even look at) Step 2, but many programs do.
5. Show interest in the field by either doing a research project (and getting it published or presented or whatever) and having a good rapport with radiology folks at your home institution (especially program director, assistant program directors, department and divisional chairs).
Good luck to you. You'll more than likely be fine when it comes to matching into radiology.
