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Weapons & Equipment » Search » Improved Autocannon/20
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General Details
Name: Improved Autocannon/20
Type (Category): Weapon (Ballistic)
Reference: Interstellar Operations: Alternate Eras (p. 90)
Description:
Early Clan ballistic weapons tech also benefited from advanced metallurgy and construction techniques that rendered these classics of warfare lighter and more compact. These weapons enjoyed only a brief service life before more significant advances to the Ultra and LB-X autocannon types rendered standard-model cannons obsolete.
Game Rules:
All four improved standard autocannons perform in the same fashion, and with the same heat, damage, range, and to-hit modifiers as those made using the Inner Sphere technology base.
Unit Type Availability
BattleMechsIndustrialMechsCombat Vehicles
Clan Data (BattleMechs)
| Prototype Date: | ~2815 |
| Production Date: | — |
| Extinction Date: | 2833 |
| Recovery Date: | 3080 |
BattleMech Specific Construction Rules
May be mounted on Clan 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)
E
X-C-X-X
300,000
13
9
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: Improved Autocannon/20 MegaMek Output → Critical Slot: Improved Autocannon/20
Record Sheet Output → Critical Slot: Improved Autocannon/20
Clan Data (IndustrialMechs)
| Prototype Date: | ~2815 |
| Production Date: | — |
| Extinction Date: | 2833 |
| Recovery Date: | 3080 |
IndustrialMech Specific Construction Rules
May be mounted on Clan 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
E
X-C-X-X
300,000
13
9
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: Improved Autocannon/20 MegaMek Output → Critical Slot: Improved Autocannon/20
Record Sheet Output → Critical Slot: Improved Autocannon/20
Clan Data (Combat Vehicles)
| Prototype Date: | ~2815 |
| Production Date: | — |
| Extinction Date: | 2833 |
| Recovery Date: | 3080 |
Combat Vehicle Specific Construction Rules
May be mounted on Clan 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
E
X-C-X-X
300,000
13
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: Improved Autocannon/20 MegaMek Output → Critical Slot: Improved Autocannon/20
Record Sheet Output → Critical Slot: Improved Autocannon/20
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