Patterning Your Shotgun: The Exercise Every Owner Should Do

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September 10, 2026 · Dan Ribacoff, NRA-Certified Instructor

The myth and why it matters

Ask a random group of people what a shotgun does indoors and a large share will tell you it sprays a wide cone of pellets that makes aiming unnecessary. This belief is comprehensively wrong, it is widespread, and it gets people hurt.

At the distances that actually occur inside a house — three to seven yards — a load of buckshot from a typical cylinder-bore barrel produces a pattern roughly the size of a fist, sometimes smaller. You can miss entirely with a shotgun at across-the-room distance, and people do.

The corollary matters too: every pellet that misses continues onward, and each one is individually capable of penetrating drywall. A miss with buckshot is eight or nine independent projectiles going somewhere you did not choose.

What patterning is

Patterning means firing your shotgun, with the ammunition you intend to use, at paper targets at known distances, and measuring the result.

It is not an academic exercise. Pattern performance varies enormously between guns, between barrels, between chokes and especially between ammunition types. Two boxes of buckshot from different manufacturers can produce dramatically different patterns from the same gun.

There is no way to know what yours does except to shoot it.

How to do it

1. Get large paper targets — butcher paper, cardboard or dedicated patterning sheets at least two feet square.
2. Set up at three yards. Fire one round, aiming at a marked centre point.
3. Mark the sheet with the distance and load. Measure the spread of the pattern and note where its centre sits relative to your aim point.
4. Repeat at five, seven, ten, fifteen and twenty-five yards, with fresh paper each time.
5. Repeat the entire sequence with every load you are considering.
6. Keep the targets. Write on them. This is reference material you will want later.

What you will probably find

Distance	Typical buckshot pattern, cylinder bore
3 yards	Roughly a single ragged hole, 1–2 inches
5 yards	2–4 inches
7 yards	4–6 inches
10 yards	6–9 inches
15 yards	9–14 inches
25 yards	Often 20+ inches, with pellets leaving the target

These are rough figures and yours will differ, which is exactly the point. Note the implication: inside a house, the shotgun is effectively firing a single large projectile and requires the same aiming discipline as any other firearm.

Note also the far end. Beyond about fifteen to twenty yards with standard buckshot, pattern spread means individual pellets are landing well away from your aim point — which is a serious accountability problem in any environment with people in it.

Ammunition types and their roles

• Birdshot — many tiny pellets, designed for birds. Poor terminal performance for defense; frequently recommended by people who have not patterned it. It will still penetrate walls at close facility.
• Buckshot — larger pellets, typically eight or nine in a 00 buck load. The standard defensive choice.
• Reduced-recoil buckshot — lower velocity, noticeably less recoil, frequently tighter patterns. Often the best practical choice for home defense, and worth patterning against standard loads.
• Flight-control or wad-controlled buckshot — engineered to hold very tight patterns. Can produce a single hole at seven yards. Excellent, and expensive.
• Slugs — a single large projectile, for distance and penetration. Requires sights and deliberate aiming.

Chokes and barrels

If your shotgun accepts choke tubes, the choke changes the pattern substantially. Cylinder and improved cylinder are the usual choices for defensive buckshot; tighter chokes can produce erratic buckshot patterns and are generally intended for birdshot.

Barrel length affects handling more than pattern. A shorter barrel is easier indoors and is louder. Whatever configuration you have, pattern it as configured rather than assuming.

Sights matter more than most shotgun owners think. A simple bead is workable at close facility; ghost ring sights or a red dot make deliberate aiming much easier, which is what the patterning exercise demonstrates you need to be doing.

What patterning teaches beyond patterns

Almost every student who patterns a shotgun for the first time comes away with three realisations.

First, that they must aim. The gun is not a substitute for marksmanship and never was.

Second, that ammunition selection matters more than they assumed — the difference between a budget buckshot load and a wad-controlled load can be a factor of three in pattern size.

Third, that they should probably have done this years ago. Patterning takes an afternoon, costs the price of a couple of boxes of shells, and permanently changes how someone thinks about a firearm they may have owned for a decade.

Shotgun training covers patterning alongside loading technique, recoil management and the manipulations that make the platform work. It is one of the more genuinely eye-opening sessions we teach.

Buying decisions worth slowing down

Firearms and accessories are a market with enormous marketing spend and very little independent guidance, which makes it easy to accumulate equipment that does nothing for your shooting. A few principles that hold up over time.

Spend on fit and function before you spend on appearance. A gun that fits your hand, a belt stiff enough to carry it, a holster that covers the trigger guard completely, and quality hearing protection will do more for your shooting than any optic, trigger job or muzzle device.

Test everything personally. Recoil spring weights, trigger reach, grip texture and sight visibility vary enormously between models and cannot be evaluated from a specification sheet or a video review. An afternoon at a rental counter is the cheapest research available.

Be sceptical of anything that promises to substitute for training. Optics, lasers, compensators and premium ammunition all have legitimate uses, and none of them fix a grip, a flinch or a trigger press. The order of operations is fundamentals first, equipment second, and reversing it is how people end up with expensive guns they cannot shoot.

Train with a certified instructor in South Florida

Reading about shooting is useful. Being watched while you shoot is transformative — because the faults that limit you are, almost by definition, the ones you cannot see yourself. Delray Firearms Training provides private, NRA-certified instruction with Dan Ribacoff throughout Palm Beach County and Broward County, including Delray Beach, Boca Raton, Boynton Beach, West Palm Beach, Fort Lauderdale, Coral Springs and Weston.

Lessons are one-on-one by default, arranged by appointment seven days a week, and shaped around your experience level rather than a fixed script. Whether you have never fired a shot or you have carried for twenty years and want a specific problem solved, the starting point is a short conversation.

Call 516-315-2809 Request a Time

About the instructor

Dan Ribacoff is an NRA-certified firearms instructor, licensed private investigator and career security professional who has spent decades in investigations, executive protection and private security. He teaches handgun, rifle, carbine, shotgun, concealed carry, home defense and maintenance courses across South Florida. Read more about Dan →

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• Ammunition Explained: What the Numbers on the Box Mean
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