Your caustic caricatures of the National Rifle Association as the friend of criminals, extremists and terrorists amounts to propaganda more worthy of Pravda than The Washington Post. Such irresponsible accusations are an insult to the intelligence of your readers and are unbecoming to a newspaper of national stature.

I can discern very little difference between bigotry and your willful character assassination of an organization of 3 1/2 million Americans, including the president and vice president of the United States. Apparently, your brand of yellow journalism is incapable of objectively addressing the political issue of gun control versus the people's right to keep and bear arms.

Prejudice on the part of a newspaper is inexcusable. -- Walter V. Gray III A Diatribe Against Witches

I read with dismay the article by Alex Heard, "Witches or Wimps? You Make the Call" {Magazine, Oct. 25}. It is sad that Heard unconsciously presented to the readers some of his own personal characteristics of arrogance and insensitivity rather than a thoughtful and thorough report of the Witches League for Public Awareness.

The article seemed to have no other intention than to denigrate the group, whose purpose is to alter the misconceptions and prejudices against witches and their religion. To hand out insults to an individual or a group, and in the next sentence offer a hollow apology, is a "hit and run" tactic that will never be considered respectable.

It is disheartening that The Post allowed a tasteless diatribe to be published. -- S. L. Wright Baffled

Knowing your newspaper as a serious source of information, I was baffled to read the article ''Former Premier's Death Spurs Fears for Democracy in West Germany'' by Robert J. McCartney {Oct. 17}, describing the political excitement following the mysterious death of Schleswig-Holstein's premier Uwe Barschel.

If I had read only the headline, which unfortunately most people do, I would have gotten the impression that the Federal Republic of Germany is on the verge of a military coup. But West Germany is not Burkina Faso or Argentina! Even if the political discussion does tend to get rather harsh at times, I consider West Germany to be one of the most firm and solid democracies existing today, which surely is not endangered by a political scandal.

Despite the fact that the author clears up matters toward the end of the article by writing that ''analysts cautioned against exaggerating the impact of a single scandal on the future of West German democracy,'' I would be very interested to know why you chose such an inappropriate and, in the eyes of a European, ridiculous title. Was it just to attract people's attention? -- Philipp Habsburg Fun Food

Does Phyllis Richman write for the Geritol set? It's hard to believe she missed the whole point of Copeland's {"Fry and Fry Again at Copeland's," Magazine, Oct. 18}, which is that it's a fun place to be. It's for the young and the young at heart. It's not stuffy and boring like 99 percent of your "fine" dining establishments. Moreover, it has reasonable prices and good, even excellent, food. What more could anyone want?

Instead of complaining about how crowded Copeland's is, perhaps Richman should consider why it is so popular with people of all ages. She might then realize that it's popular because it's so different -- and thus, a refreshing break from most of what's out there. Wake up, Phyllis! -- M. J. Copernoll Israel's Security (Cont'd.)

Donald E. Wolpe's message {Free For All, Oct. 24} came through loud and clear. Three times he reminded us that "People without a country of their own are the scum of the earth -- the inevitable prey of the beasts!" I am now thoroughly convinced that, with our "concern for human rights," we must leave no stone unturned in our efforts to establish a Palestinian state!

As for "where the hell was America . . . 45 years ago," it will undoubtedly surprise Wolpe to learn that 45 years ago 406,000 Americans died in the hell of the Battle of the Bulge and on other battlefields of Europe and Africa fighting Nazism. Not to mention the hundreds of thousands who returned home permanently disabled. Wolpe's father was not one of them.

Since, according to Wolpe, "Jews are no more secure in America today than they were in Germany 60 years ago," the obvious solution is for them to avail themselves of the "security and life and dignity -- and survival" offered by the state of Israel.

And without the Jewish lobby on Capitol Hill, Americans may even be able to reduce the budget deficit by the several billion dollars a year that now go to Israel with no strings attached. -- Carl J. Rosapepe Sr.