GUN UP !!!

The MTDS app puts TC 3-22.90 gun drills and the knowledge in your pocket. Timed deflection and elevation changes, exam standards on every round, and a 175+ question mortar knowledge bank — 60mm, 81mm, and 120mm.

Free Mode — Small and Large drills with the live timer, all three systems, no account. 3-day free trial — every subscriber feature, before you pay. $10/month — everything: Random missions, history, the Gunner's Exam, the full knowledge bank, Automatic Mode, and Round Tracker. No ads.

Download on the App Store Get it on Google Play

Coming soon

For Mortar Men — by Mortar Men

0341 — 11C

175+

Knowledge-bank questions

0–6399

Deflection range, mils

≤20s

Expert small deflection

TC 3-22.90

Every drill verified

What it does

01

TC 3-22.90 drill engine

Small, large, and random missions generated to the manual — deflection 0–6399, elevation 800–1511, saddle tracked on every lay, and a home reset that puts the gun back on initial data. Practice the changes the gunner’s exam actually tests. Automatic Mode (subscribers) calls the fire command aloud with a recorded caller — section, deflection, charge, elevation, digit by digit — and the clock starts the instant the call ends. The rep logs like any other.

02

Centisecond lap timer

Tap Gun Up to log the round; double-tap to stop clean — no ghost entries. Every time lands against color-coded exam standards, with grouped history so you can watch the trend.

03

Mortar knowledge bank

175+ doctrine-verified questions across 60mm, 81mm, 120mm, ammunition, general knowledge, and IMLC — every answer cited to the source publication, verified against TC 3-22.90. Multiple choice with scoring, swipeable flashcards, and a practice-missed mode that drills what you got wrong.

04

Gunners Exam

The full 5-station examination per TC 3-22.90, Chapter 8 — run from the evaluator's phone. Type the candidate roster, rotate every gunner through each station with timed trials and no-credit checklists, and walk away with a completed DA Form 5964 for every candidate. The clipboard, stopwatch, and scorecard in one tool.

05

Round Tracker

Live-round accountability for the section: rounds fired through each tube, ammo drawn, pushed, and expended, gun-card lifetime counts, inspection windows, and a close-out that reconciles the day before turn-in. The gun book, the ammo sheet, and the count — one board.

The app

Enter the data. Beat the clock.

A dark, glove-friendly interface built for the gun line: deflection and elevation in, fire mission out, timer running. Viewport-fitted with no scrolling mid-drill — nothing between you and the next Gun Up.

Train anywhere

Reps between the reps

The gun line is where the time counts — but the reps happen in the barracks, the motor pool, and the back of the truck. Run a drill or a ten-question set anywhere, and show up to the range already fast.

Speed on the gun isn’t talent. It’s reps — and the standard is written down.
— Drills scored against the gunner’s exam standards in TC 3-22.90, Chapter 8
Resources

The doctrine library

Every reference the drills are built on — full PDFs, hosted right here. Browse the library →

Doctrine current: TC 3-22.90 (Mar 2017, C1 Dec 2022) · TC 3-22.91 · ATP 3-21.90/MCTP 3-01D (Oct 2019) — verified each release.

Get on the gun

Free Mode — Small and Large drills with the live timer, all three systems, no account. $10/month unlocks everything: Random, history, the Gunner's Exam, the full knowledge bank, Automatic Mode, and Round Tracker — no ads, with a 3-day free trial. Coming soon to the App Store and Google Play.

Download on the App Store Get it on Google Play

Coming soon