Yes, SC category girls can get admission in Sainik School with around 176 marks, but it depends on the cutoff marks of individual Sainik Schools and the number of seats available. Cutoffs vary every year by school, category, and gender, and reserved categories like SC often have lower closing marks compared to the general category. Final admission is based on merit in AISSEE, counselling and seat allotment.

You can check past Sainik School cutoff marks and trends here: https://school.careers360.com/articles/sainik-school-cut-off-marks