Close-Range Work & the Failure Drill

Most defensive carbine problems are close — inside 25 yards, often inside 10. At these distances the carbine is fast and decisive, but two things change versus distance shooting: mechanical offset matters most here (the sight-over-bore from Carbine Fundamentals), and the balance tips hard toward speed — though never at the cost of an unacceptable hit. Close work is about delivering fast, accurate, accountable hits while managing the offset and the responsibility of rounds at conversational distance.

At contact-to-25-yard distances the bullet strikes up to ~2.5 inches below your point of aim because the sight sits that far above the bore (Carbine Fundamentals, cf-04). On a large target this is negligible; on a small or partially-exposed target up close it's the whole shot. The classic error is aiming at a small aim point at 5–10 yards and hitting low. The fix is reflexive: at close range, on a precise aim point, hold high by roughly the sight-over-bore distance. This is exactly the offset hold from Carbine Fundamentals, and close defensive work is where it pays off — because a precise shot up close (e.g. a head/ocular shot or around an obstruction) demands it. Drill it until holding high at contact distance is automatic.

Close range allows a fast cadence on large targets, but "fast" still means accurate and accountable. The skill is reading what the shot requires (the wobble-zone / cadence concept again): a wide-open torso at 7 yards needs only a coarse sight picture and can be engaged fast; a small or obscured target, or a precise shot to stop a threat that center hits aren't stopping, needs a finer sight picture even up close, which costs a beat. Speed comes from an efficient mount and not demanding more sight picture than the shot needs — never from accepting hits you can't account for. A fast miss is worse than useless at close range because every round has serious consequence and a defined backstop you're responsible for.

The failure drill (sometimes "failure to stop" or, historically, Mozambique) is two rounds to the center of mass followed by, if the threat is not stopped, one precise round to a smaller high target — trained as a problem-solving sequence, not a rote string. Its lesson is conceptual: if your initial hits aren't producing the needed effect, you don't keep doing the same thing — you escalate to a more precise, more decisive shot. That final shot is small, demands a finer sight picture and the offset hold up close, and earns its own deliberate press; the first hits can be fast, the failure shot cannot be rushed. The broader principle, which echoes the multi-target accountability lesson: assess the effect of your shots and adapt, rather than firing a fixed number and assuming success. This is judgment under stress, trained as a drill so the assessment-and-adapt loop is available when it's needed.