Hello, 

According to cutoffs of last year with a score between 260-280 u have a fair chance of getting a government seat with ur SC reservation.

A score above 280 can be considered as a safe score. But as of now nothing can be said with absolute assurance coz every year the trends change.

You can also go through the following link:

https://medicine.careers360.com/articles/neet-cutoff-karnataka/amp

I suggest you keep ur options open and under AIQ apply for good deemed universities too.

All the best.