I think hickory is tough to chase the ring. Others will chine in that have done it and agree or disagree.
If it is at the tip and in a non working or possibly slightly working area you should be OK. Hickory is tough that way too.
After your bow is complete you might consider a wrap at the end of the gouge with sinew or thread set in glue. You can add a "faux" wrap on the other limb for symmetry.
With the length, width and your desired draw weight and length, you should be fine with this bow. You could consider this bow as preparing you for the many more you WILL make in the future
and enjoy it for what it is. With wood bows you don't know for sure anyway. Pat