50? 50 out of 100? Is this from the Bee...
I don’t know if it has changed, but 50 meant percentile of test takers.
As in a 63 on the test put you in the top 37% of test takers.
A 100 is impossible, as being in the top 0% is mathematical nonsense.
The USAF and USCG require the highest scores for enlistment. In theory it is 35 but the recruiter won't talk to you unless you score a 50 or better.
https://asvabbootcamp.com/blog/asvab-scores/