Oxy OP pills have INTAC deterrent in them, which means they have a gelling agent, so even if you manage to crush it into powder you still can't snort it. In the presence of moisture (such as the mucous in your nose) it immediately gels up. This makes it unpleasant and wasteful to snort, because not all of it gets absorbed.
There is no easy way to separate the oxycodone from the deterrent in the pill.
All you can really do is eat them or plug then.
Plus, taking the pills orally has much higher bioavailability than snorting anyways.