@ rezdog
I believe the 1/2 at the end of the number means half hollow.
From what I have seen 17's are 6/8-7/8
14 blanks have been used by multiple manufactures and they range from 7/8-8/8". There are a couple of threads that go into explaining this a bit more.
If you roam around long enough you will see that nearly all the 1/2's have a round point. I have three mint 17's that all measure 15/16. You are correct on the 14's