Whatever else what can say about any action A picture (“Avatar,” “Sisu,” “Don’t Breathe”) or slew of B and C-movies that have filled the post AARP membership career of the formidable Stephen Lang, you have to give it up for his stunt double, his stunt team, stunt coordinator and (guessing here) his pilates instructor.

For 73, the dude gets around, busts heads and kicks tail. In the movies, at least.

“Hellfire” is another never-underestimate the “Old Man” vengeance thriller of the B movie variety. It’s not remotely as good as the best of his recent Bs, “VFW.” But he’s playing another veteran, “ex-Special Forces,” the wrong sort of drifter to cross even if you’d just as soon he drift right out of town — no stop for drinks, no meal, no night in a motel.

Screenwriters have it in their heads that this “violent veteran” characters matter to anybody who would elect to stream titles like “Hellfire.”

This being 1990s Texas, our nameless drifter gets gets nicknamed “Nomada” (nomadic) by the wheelchair-bound owner (Chris Mullinax) of the local saloon. Hey it’s catchy enough for everybody in town to adapt it.

There’s the saloon owner’s daughter Lena (Scottie Thompson), the aging hulk of a sheriff (Dolph Lundgren) and even the bad guy Clyde (Michael Sirow) who travels with two goons to make sure he properly intimidates one and all he meets. “Nomada” also crosses the lips of Clyde’s Beethoven-loving, piano-playing father (Harvey Keitel) who “runs this town” from his fancy antebellum mansion.

We hear that nickname almost as often as the phrase “We don’t care much for outsiders” and “Ex-Special Forces, huh?”

The entire town is in the clutches of drug-importer Jeremiah (Keitel), who has his minions threaten and break hands of any who disobey his edicts about “outsiders” and the operation all are required to pitch in on. We’ll see what Mr. Ex-Special Forces has to say about that.

Stunt man turned B-movie director Isaac Florentine (“Seized,” “Acts of Vengeance”) protects his star and showcases him as best he can. But it’s a slow, stumbling and stupidly predictable film, save for one plot turn.

Our hero has what we take are Vietnam combat flashback nightmares, suggesting survivor’s guilt and a hunger for revenge. But whole gunfights are predicated upon the idea that Latin cartel gunmen and “ex-Special Forces” veterans can’t hit the broad side of a barn with the broad side of another barn.

And there’s a fatal flaw in Richard Lowry’s script that I won’t give away except to note how similiar it is to the Indiana Jones/”Raiders of the Lost Ark” “necessity” quandary.

Not every movie can be an A-picture, and whatever his “Avatar” paydays, that can’t be the most rewarding work Lang does as his career winds down (not nearly as fast as Keitel’s, from the looks of things).

My coping mechanism for enduring merit-free trash like this is to remember an actor’s better moments — Lang’s affecting, emotional turn as General Pickett of “Pickett’s Charge” infamy, the best performance in “Gettysburg,” his Ike Clanton in “Tombstone” and his menacing blind crime victim who won’t be “victimized” in “Don’t Breathe.”

“Hellfire” is exactly the sort of movie you’d expect Dolph Lundgren to wind down his career with. Keitel and Lang deserve better.

Rating: R, graphic violence, drug content

Cast: Stephen Lang, Scottie Thompson, Michael Sirow, Chris Mullinax, Dolph Lundgren and Harvey Keitel.

Credits: Directed by Isaac Florentine, scripted by Richard Lowry. A Saban Films release.

Running time: 1:35