I've owned a few hmr rifles, still own one. They are superb. The actions are excellent, and I've never heard of one that wasn't a lights out shooter. Just make sure that stock is what you want.
I've owned several Savage rifles, and they are generally pretty accurate, and some are very accurate. I've never had the model that you are asking about. I would say that you should compare things like the stocks, the triggers, the actions. Assuming they will both shoot plenty well to be a good 500y rifle, the ergonomics and creature comforts will be what matters. I'd pick the bergara every time in this choice for myself, but you may feel differently after shouldering them both.