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Weapons & Equipment » Search » Autocannon/20
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General Details
Name: Autocannon/20
Type (Category): Weapon (Ballistic)
Reference: TechManual (p. 208)
Description:
Today’s standard autocannon (identified as AC in shorthand) is functionally identical to the models used as far back as the days of the Terran Alliance. Designed to cope with improvements in armor technologies of the day, these weapons maintained their destructive edge through more than 800 years of battlefield evolution. Even so, their time was nearing its end when the newer Ultra and LB-X autocannon classes emerged. In fact, among the Clans these weapons have apparently ceased to exist (their last shots reportedly fired in the early 3050s, when they were mounted on machines largely regarded as refit museum pieces). Only their relatively inexpensive design, and the advent of specialized munitions usable by these weapons alone, has prevented the likes of Armstrong’s J11, Mydron models A through D, SarLon’s MaxiCannon and the Luxor Devastator-20 from becoming the next forgotten relics of history.
Game Rules:
Autocannons may not be fired if the unit is shut down or if its pilot/crew is otherwise prevented from acting, but loaded or partially loaded AC ammo bins are always live and will explode per standard rules if critically hit during game play.
Unit Type Availability
BattleMechsIndustrialMechsCombat Vehicles
Primitive/Inner Sphere Data (BattleMechs)
| Prototype Date: | — |
| Production Date: | 2500 |
| Extinction Date: | — |
| Recovery Date: | — |
BattleMech Specific Construction Rules
May be mounted on Primitive/Inner Sphere units in accordance with the following construction rules:
 May be split across multiple locations
Heat
Damage (Aero)
Range (Aero)
Rating
Availability
Cost (C-bills)
Weight (Tons)
Criticals
Battle Value
Direct-Fire
Explosive
7
20 (20)
–/3/6/9 (Short)
C
D-E-D-D
300,000
14
10
178.000
✔
—
RULES LEVEL PROGRESSION TABLE
Start Year
End Year
Rules Level
AMMUNITION COMBAT AND CONSTRUCTION TABLE
Type
Rounds
Rating
Availability
Cost (C-bills)
Weight (Tons)
Battle Value
Explosive
Prototype
Production
Extinction
Recovery
Reference
Standard
5
B
C-C-D-D
10,000
1
22.000
✔
—
2500
—
—
TM (p. 207)
Armor-Piercing
2
E
X-X-E-E
40,000
1
22.000
✔
3055
3059
—
—
TM (p. 208)
Caseless
10
D
X-X-E-D
15,000
1
44.000
✔
3056
3079
—
—
TO:AUE (p. 164)
Flak
5
B
E-F-F-E
15,000
1
22.000
✔
ES
~2310
—
—
TO:AUE (p. 164)
Flechette
5
E
X-X-E-E
15,000
1
22.000
✔
3053
3055
—
—
TM (p. 208)
Precision
2
E
X-X-E-E
60,000
1
22.000
✔
3058
3062
—
—
TM (p. 208)
Tracer
5
B
D-E-F-E
15,000
1
27.500
✔
ES
~2300
—
—
TO:AUE (p. 165)
ALPHA STRIKE WEAPON CONVERSION TABLE
Heat
Short Medium Long Extreme Special Abilities
Special Unit Abilities
The special unit abilities described here are intended for use with the Alpha Strike rule system:
Autocannon (AC)
This unit mounts a significant number of autocannons and may fire them together as an alternative weapon attack instead of a standard weapon attack. This ability enables the unit to use alternate autocannon ammo for modified effects.
MegaMek Output → Weapon List: AC/20 MegaMek Output → Critical Slot: Autocannon/20
Record Sheet Output → Critical Slot: Autocannon/20
Primitive/Inner Sphere Data (IndustrialMechs)
| Prototype Date: | — |
| Production Date: | 2500 |
| Extinction Date: | — |
| Recovery Date: | — |
IndustrialMech Specific Construction Rules
May be mounted on Primitive/Inner Sphere units in accordance with the following construction rules:
May be split across multiple locations WEAPONS AND EQUIPMENT COMBAT AND CONSTRUCTION TABLE
Heat
Damage
Range
Rating
Availability
Cost (C-bills)
Weight (Tons)
Criticals
Battle Value
Direct-Fire
Explosive
7
20
–/3/6/9
C
D-E-D-D
300,000
14
10
178.000
✔
—
RULES LEVEL PROGRESSION TABLE
Start Year
End Year
Rules Level
AMMUNITION COMBAT AND CONSTRUCTION TABLE
Type
Rounds
Rating
Availability
Cost (C-bills)
Weight (Tons)
Battle Value
Explosive
Prototype
Production
Extinction
Recovery
Reference
Standard
5
B
C-C-D-D
10,000
1
22.000
✔
—
2500
—
—
TM (p. 207)
Armor-Piercing
2
E
X-X-E-E
40,000
1
22.000
✔
3055
3059
—
—
TM (p. 208)
Caseless
10
D
X-X-E-D
15,000
1
44.000
✔
3056
3079
—
—
TO:AUE (p. 164)
Flak
5
B
E-F-F-E
15,000
1
22.000
✔
ES
~2310
—
—
TO:AUE (p. 164)
Flechette
5
E
X-X-E-E
15,000
1
22.000
✔
3053
3055
—
—
TM (p. 208)
Precision
2
E
X-X-E-E
60,000
1
22.000
✔
3058
3062
—
—
TM (p. 208)
Tracer
5
B
D-E-F-E
15,000
1
27.500
✔
ES
~2300
—
—
TO:AUE (p. 165)
ALPHA STRIKE WEAPON CONVERSION TABLE
Heat
Short Medium Long Extreme Special Abilities
Special Unit Abilities
The special unit abilities described here are intended for use with the Alpha Strike rule system:
Autocannon (AC)
This unit mounts a significant number of autocannons and may fire them together as an alternative weapon attack instead of a standard weapon attack. This ability enables the unit to use alternate autocannon ammo for modified effects.
MegaMek Output → Weapon List: AC/20 MegaMek Output → Critical Slot: Autocannon/20
Record Sheet Output → Critical Slot: Autocannon/20
Inner Sphere Data (Combat Vehicles)
| Prototype Date: | — |
| Production Date: | 2500 |
| Extinction Date: | — |
| Recovery Date: | — |
Combat Vehicle Specific Construction Rules
May be mounted on Inner Sphere units in accordance with the following construction rules:
May be split across multiple locations May not be mounted in the Body WEAPONS AND EQUIPMENT COMBAT AND CONSTRUCTION TABLE
Heat
Damage
Range
Rating
Availability
Cost (C-bills)
Weight (Tons)
Criticals
Battle Value
Direct-Fire
Explosive
0
20
–/3/6/9
C
D-E-D-D
300,000
14
1
178.000
✔
—
RULES LEVEL PROGRESSION TABLE
Start Year
End Year
Rules Level
AMMUNITION COMBAT AND CONSTRUCTION TABLE
Type
Rounds
Rating
Availability
Cost (C-bills)
Weight (Tons)
Battle Value
Explosive
Prototype
Production
Extinction
Recovery
Reference
Standard
5
B
C-C-D-D
10,000
1
22.000
✔
—
2500
—
—
TM (p. 207)
Armor-Piercing
2
E
X-X-E-E
40,000
1
22.000
✔
3055
3059
—
—
TM (p. 208)
Caseless
10
D
X-X-E-D
15,000
1
44.000
✔
3056
3079
—
—
TO:AUE (p. 164)
Flak
5
B
E-F-F-E
15,000
1
22.000
✔
ES
~2310
—
—
TO:AUE (p. 164)
Flechette
5
E
X-X-E-E
15,000
1
22.000
✔
3053
3055
—
—
TM (p. 208)
Precision
2
E
X-X-E-E
60,000
1
22.000
✔
3058
3062
—
—
TM (p. 208)
Tracer
5
B
D-E-F-E
15,000
1
27.500
✔
ES
~2300
—
—
TO:AUE (p. 165)
ALPHA STRIKE WEAPON CONVERSION TABLE
Heat
Short Medium Long Extreme Special Abilities
Special Unit Abilities
The special unit abilities described here are intended for use with the Alpha Strike rule system:
Autocannon (AC)
This unit mounts a significant number of autocannons and may fire them together as an alternative weapon attack instead of a standard weapon attack. This ability enables the unit to use alternate autocannon ammo for modified effects.
MegaMek Output → Weapon List: AC/20 MegaMek Output → Critical Slot: Autocannon/20
Record Sheet Output → Critical Slot: Autocannon/20
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