I've kind of given up on gun magazines in general. Most gun writers seem to be rewriting the same pieces year after year, and after the first ten years or so of subscriptions it gets a little boring.
IMO...
Handloader and
Rifle were the gold standard through the 90's, but quality has really dropped since then. They're still a little better than most, but...
Shooting Times,
Guns & Ammo,
Shooting, and
Gun World (I'm sure I'm missing a few) typify the "standard" gun magazine, aimed at the novice-to-intermediate shooter, and are made up primarily of the kind of repetitive writing I've already complained about. I scan them on the news stand and occasionally bring one home when I see something especially interesting, but honestly, that's rare these days.
I utterly detest all the "tactical" rags that are so popular right now. Things like
Guns and Weapons of Law Enforcement, Combat Handguns,
S.W.A.T., etc. seem to be written by (and intended for) teenaged videogame enthusiasts. I'm sure they're popular with some folks around here- but I'm also sure there are plenty of teenaged videogame enthusiasts around here too.
Gun Tests gets a lot of lip service as an "unbiased" magazine, which I think is true. But I'm bothered by their tendency to review one sample of a particular gun and make sweeping judgments about all examples of that gun.
Shooting Sportsman and
Gray's Sporting Journal are pretty decent magazines for hunting enthusiasts, IMO, but can be a little pretentious.
Double Gun and Single Shot Journal is in the same vein, but better done and with some extremely knowledgeable writers. If you're interested in handguns (or anything less than 50 years old) then it might not be your cup of tea.
American Handgunner is by far the best for handgunners, IMO. They have several very good authors and a wide variety of subject matter - it's not all 1911s or single actions or whatever.
Precision Shooting is probably best for riflemen, or at least riflemen who are interested in facts about accuracy, rather than the usual bull**** you see online and in the "typical" gunrag.
That's all I can think of, or have experience with... hope it helps.