4.6×30mm Drop Chart
The HK MP7's PDW round — a tiny, fast 40-grain bullet. Civilian ammo is sparse (Fiocchi) and no barrel-length data is published, so this is the maker's advertised figure — confirm at the range.
Updated
Rimfire velocity peaks around 16–20″ and then flattens, so barrel length barely changes the chart.
40 gr FMJ (Fiocchi) · 1,900 fps · G1 BC 0.21 · 100-yard zero · 2″ optic height · sea level.
| Range | Drop (in) | Hold (MOA) | Hold (MIL) | Velocity |
|---|---|---|---|---|
| 25 yd | −0.4 | 1.7 | 0.5 | 1,811 fps |
| 50 yd | +0.5 | — | — | 1,726 fps |
| 75 yd | +0.6 | — | — | 1,643 fps |
| 100 yd | 0 | — | — | 1,565 fps |
| 150 yd | −4.0 | 2.6 | 0.7 | 1,418 fps |
| 200 yd | −12.4 | 5.9 | 1.7 | 1,289 fps |
Stays supersonic to roughly 200 yards — past that the bullet goes transonic and groups usually open up.
What this means for your optic
By the time you're holding several MOA or MIL of holdover, a plain dot stops being enough. That's where a reticle with marked holds (a BDC or MIL/MOA grid), an exposed turret you can dial, and a first-focal-plane scope earn their keep. Pick a rifle below to see the optics that fit it — and how they mount.