The decision is here: https://www.ca10.uscourts.gov/opinions/17/17-3034.pdf

Tenth Circuit Rules Gun Control Act And National Firearms Act Constitutional

The link to Herschel Smith's article is http://www.captainsjournal.com/2018/10/16/tenth-circuit-rules-gun-control-act-and-national-firearms-act-constitutional/

He gives an extended quote from the decision and then comments:

Read the whole thing.  The black robed tyrants conclude that merely taxing something means that Congress has the right to regulate something as long as the regulation comes with an attendant tax.

Given this, all the FedGov has to do is place a federal tax – direct or excise – on ammunition of $1000 per round, and to the tenth circuit this would be within the bounds of the constitution, even though the constitution explicitly says that “Congress shall make no law …”

As I’ve said, don’t look to the tyrants to protect your rights.  They are all in bed together, even if there is internecine warfare within the government to see who comes out on top of the totem pole.  When threatened, they band together like the communists they are.

They may renew their struggle later, but they will never upbraid another branch of government, law or regulation in front of the peasants.  That might lead to revolt.

EDITED to add link to NRA News Cam and Company interview about this case with Stephen Halbrook:

https://www.nratv.com/videos/cam-and-company-2018-steve-halbrook-10th-circuit-rules-on-nfa-second-amendment-and-taxes