Maharashtra has approximately 1--5% reservation for the wards of Ex-servicemen. With such a minute percentage, 300  is an insufficient score. For a seat in a GMC with Ex servicemen quota, you will still need 500. This is based on previous years cut offs. Cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, top NEET score and difficulty of the exam. To help you with your NEET preparation, we have NEET Knockout packages that you can check at: https://learn.careers360.com/knockout-neet-may/. To help you during admission and counselling, we have https://www.careers360.com/mbbs-companion.