Name:  Improved LRM 20
Type (Category):  Weapon (Missile)
Reference:  Interstellar Operations: Alternate Eras (p. 90)

Description:
A marvel of miniaturization, the Clans reduced the weight of their LRM launchers by half and somewhat reduced their bulk. Further improvements would create the familiar Clan LRM, which even eliminated the weapon’s minimum range deficiencies.

Going a different direction, however, were the improved SRMs that appeared a full year before the new LRMs. Utilizing more powerful launch mechanisms, the early Clan weapons-makers increased the SRMs’ effective range by one-third, even though launchers themselves remained about the same weight and size as their original counterparts. Combining this advancement with the more accurate Streak targeting system would eventually consign the improved SRM to obscurity, but not before other manufacturing upgrades enabled the Clans to shrink their standard SRM launchers to half their original weight.

Game Rules:
Improved LRM launchers come in all the same rack sizes as their Inner Sphere equivalents, and maintain the same heat, ranges, per-missile damage, cluster tables, and volley-per-ton values as well. Improved SRM launchers, meanwhile, use the same heat, permissile damage, cluster hits tables, and magazine sizes as their Inner Sphere counterparts—but boast the range brackets of the modern Clan Streak SRM instead.

BattleMechsIndustrialMechsCombat Vehicles

Prototype Date:	2815
Production Date:	—
Extinction Date:	2831
Recovery Date:	3080

BattleMech Specific Construction Rules

WEAPONS AND EQUIPMENT COMBAT AND CONSTRUCTION TABLE
RULES LEVEL PROGRESSION TABLE
AMMUNITION COMBAT AND CONSTRUCTION TABLE
ALPHA STRIKE WEAPON CONVERSION TABLE * The first value indicates the weapon's damage when employed without any Artemis FCS; the second value indicates the weapon's damage when employed with an Artemis IV FCS; the third value indicates the weapon's damage when used with the Artemis V FCS.

Special Unit Abilities


MegaMek Output → Weapon List:  Improved LRM 20
MegaMek Output → Critical Slot:  Improved LRM 20
Record Sheet Output → Critical Slot:  Improved LRM 20

Prototype Date:	2815
Production Date:	—
Extinction Date:	2831
Recovery Date:	3080

IndustrialMech Specific Construction Rules

WEAPONS AND EQUIPMENT COMBAT AND CONSTRUCTION TABLE
RULES LEVEL PROGRESSION TABLE
AMMUNITION COMBAT AND CONSTRUCTION TABLE
ALPHA STRIKE WEAPON CONVERSION TABLE * The first value indicates the weapon's damage when employed without any Artemis FCS; the second value indicates the weapon's damage when employed with an Artemis IV FCS; the third value indicates the weapon's damage when used with the Artemis V FCS.

Special Unit Abilities


MegaMek Output → Weapon List:  Improved LRM 20
MegaMek Output → Critical Slot:  Improved LRM 20
Record Sheet Output → Critical Slot:  Improved LRM 20

Prototype Date:	2815
Production Date:	—
Extinction Date:	2831
Recovery Date:	3080

Combat Vehicle Specific Construction Rules

WEAPONS AND EQUIPMENT COMBAT AND CONSTRUCTION TABLE
RULES LEVEL PROGRESSION TABLE
AMMUNITION COMBAT AND CONSTRUCTION TABLE
ALPHA STRIKE WEAPON CONVERSION TABLE * The first value indicates the weapon's damage when employed without any Artemis FCS; the second value indicates the weapon's damage when employed with an Artemis IV FCS; the third value indicates the weapon's damage when used with the Artemis V FCS.

Special Unit Abilities


MegaMek Output → Weapon List:  Improved LRM 20
MegaMek Output → Critical Slot:  Improved LRM 20
Record Sheet Output → Critical Slot:  Improved LRM 20