Move and check your mount

A mount that holds true straight in front of you is not the same as a mount that holds true after you've turned the gun forty degrees to chase a hard angle — and the gap between those two is where good trap shooters quietly separate from the rest. Even on a flat, straightaway bird the mount has to be honest: let the beads drift apart vertically — your head floating up off the comb — and the gun suddenly shoots high, sending the shot clean over the top of the bird. Swing out to a wide-angle target and you stack a second fault on top of that, the barrel dragging across the field while your body follows with the wrong piece, slipping the face sideways in a way you never feel in the moment. The problem is that you can't see it live: the clay is in the air, the shot has already gone, and your eye was on the bird, not on your own beads. This drill freezes that moment so you can actually inspect it.

It's built on the angles of American Trap — a fixed hold and a fan of targets thrown out across the field — but the skill it grooves, a sight picture that holds through any swing, transfers to every moving-target sport you'll ever shoot. If your mount isn't already repeatable straight ahead, this drill is premature: a mount that wanders before you've even moved will tell you nothing about what the swing is doing. Stop here and run a few rounds of mounting the gun first. Move-and-check only works on top of a mount that already lands in the same place every time.

Step 1: Lay out the fan

Set a green reference point — the hold — and four target points spread out ahead of it in a fan, the way trap birds break away from the house at varying angles. The simplest way to build it is five marks of painter's tape on a wall or fence: one for the hold, sitting low and near, and four "targets" climbing up and away to your strong side. Stand where the hold is a comfortable, slightly muzzle-up mount and the widest target still lets you rotate to it from the core without reaching with your arms.

Figure 1. The hold-and-fan layout. You mount on the green hold, then swing to each numbered target in turn — stopping at each to check the mount — before returning to the hold. This orientation mirrors the angles a shooter sees from the right-hand post group, roughly stations 3 through 5.

This is a dry drill, and it has to be — the entire point is to stop with the gun mounted and visually read your own beads, which you cannot do with a live clay in the air. Snap caps only, no live ammunition anywhere near it.

Verify the action is open and the chamber is empty, out loud, before anything else. Seat snap caps only after that check, and only once you've confirmed there are no live shells in the area. The muzzle stays pointed safely downrange (or angled slightly up) through every mount, swing, and dismount — turning the gun across a fan of angles is not a licence to let it sweep anything you wouldn't want to destroy.

Step 2: Mount on the hold, then swing to target 1 and read the beads

Bring the gun up to a clean mount and settle on the green hold. This is your honest baseline — the picture you trust. Now swing to target 1. Take a dry trigger pull and follow through if you like, or simply drive the gun to the angle and stop; either way, the swing carries through and then the gun comes to rest. Once it has stopped, freeze and look down the rib. Did the sight picture survive the trip?

There are only a few things to check, and a trap or over-under gun gives you a clean instrument to check them with. Looking down the rib you see two beads: a front bead at the muzzle and a mid bead partway down. The classic correct trap picture stacks them into a figure-8 — sometimes called a snowman — with the front bead sitting just above the mid bead, a small and consistent gap of daylight between them. That stacked figure-8 is your "true." Everything else is a fault with a name.

Figure 2. What to read after you stop. Left: the beads stacked into a figure-8 — the gun is true. Centre: the front bead has shifted off to one side, a horizontal error — the face came off the comb sideways or you steered with the arms. Right: the vertical gap has opened up — the head lifted off the comb. The figure-8 shown here is just one illustration — mounting styles and sight pictures vary from shooter to shooter; what matters is that your own baseline picture doesn't drift between the hold and the stop.

If the beads have gone side-by-side — front bead sitting to the left or right of the mid bead instead of above it — that's a horizontal error. The face came off the comb sideways, the head canted, or — the usual culprit on a wide swing — you steered the gun with your arms instead of rotating your upper body around your core. If the vertical gap has widened, with more daylight between the beads than your baseline showed, your head lifted off the comb during the move. The opposite — a gap that's closed up or the beads touching — means you're pressing your face down harder than normal, mashing into the comb to "find" the picture. Diagnose what changed before you move on; a fault you can name is a fault you can fix, and on a wide-angle bird, steering with the arms is the one that hides best.

Try this

Can't tell what changed? Film it from the side

When you stop and the picture has clearly moved but you can't work out why, let a phone tell you what your hands won't. Stand it on a shelf or a small tripod and record yourself square from the side, framed on your head, your hands, and the stock against your shoulder. Run the mount-swing-stop a few times, then watch it back at half speed — you'll catch something the movement hides in the moment: the head floating off the comb as the gun comes round, the front hand muscling the barrel instead of the body turning it, the back foot quietly taking weight. If that angle shows you nothing, move the phone and shoot from the other side, then from front-on. Keep changing the view and sooner or later the fault shows itself — and once you've actually seen it, you can stop it.

Step 3: Rest the gun

Dismount fully. Lower the gun back to the ready position and reset your stance — feet, weight, the lot. Don't shortcut this into a half-dismount. The reset matters because the next rep has to start from a genuine, freshly built mount, not from a gun you never quite let down. A drill that lets you cheat the mount between reps grooves the cheat.

Step 4: Re-mount to the hold

Build the mount again from scratch and settle back on the green hold. Same baseline as before — cheek welded under the cheekbone, eye over the rib, the beads stacked into that figure-8. Confirm the picture is true here, on the hold, before you ask the swing to preserve it. If the mount is already off before you've moved, target 2 will lie to you.

Step 5: Run targets 2, 3, and 4 the same way

Now repeat the swing-and-check for the remaining targets, one at a time, returning to the hold and rebuilding the mount between each. Swing to target 2, follow through, stop, read the beads. Rest, re-mount to the hold. Swing to target 3, stop, read. Rest, re-mount. Swing to target 4, stop, read.

What you're looking for across the four is a pattern of failure, not a single bad rep. A picture that's clean on the near targets and drifts on the wide ones tells you the swing itself is breaking the mount — almost always arms taking over from the core as the angle steepens. A picture that fails the same way regardless of angle points back at the mount you're building on the hold, not at the swing. The four targets are there precisely so the where-it-fails tells you the why.

Step 6: Mirror the whole setup and run it again

Tear the fan down and rebuild it as a mirror image, left-to-right flipped, then run all four targets again from the top. This matters because a swing is not symmetric: nearly every shooter holds a clean picture turning one direction and lets the mount slip turning the other, and you have to test both to know which way needs the work.

Figure 3. The mirrored fan. The first orientation covered the angles seen from the right-hand post group — roughly stations 3 through 5; this flipped setup covers the left-hand group, stations 1 through 3. Run the same mount-swing-stop-check sequence against all four targets here.

Between the two orientations you've now checked your mount against the full spread of angles a trap field will throw at you, swinging both directions, with the gun stopped each time so the verdict is something your eyes deliver instead of something your feel guesses at. The shooters who run clean rounds aren't holding a better mount than you on the straightaway — they're holding the same mount through the swing to the wide one, and this is how you find out whether you do too.

If you log this drill, log these numbers

This drill is diagnostic — it's about finding where the mount breaks, not about reps for their own sake. These three turn a session's worth of stops into a map of what to fix.

Clean-picture % per point

For each of the four targets, how often did the beads come to rest in a true figure-8? Y/N per stop, then a percentage per point. The near points should sit high; watch where it falls off.

Which angle / side fails most

Name the worst offender — widest target, a particular point, or a whole swing direction — and which fault it threw (side-by-side, gap open, gap closed). This is the line that tells you what to drill next.

Reps before fatigue

How many quality stops before the picture starts degrading from a tiring arm rather than a real fault. Stop counting there — a fatigued rep teaches the cheat instead of the fix.