Yes i would think you should. I am going to call and cancel my two stags i ordered 2 months ago and never came in. I am thinking the market is going yo be flooded here very shortly.
friend of mine placed an order for 2 stags right when things got crazy, he just found out today his wait time is 4-12 weeks. He was told after that, stag is 2 years behind on orders already. He got lucky. Yeah things will settle down, but we will still have to wait for the shelves to fill back up.
Sell what ammo you feel comfortable with selling now, keep what you think you need, and then buy twice or three times the ammo when things settle back down with that money.