Pro Memoria

Pro Memoria — Destiny 2 Legendary Machine Gun
Legendary Machine Gun · Strand · Heavy
Where it drops: Source: Exploring the Pale Heart

“"I'm with you, old man. Whether you like it or not."”

★ See the community god roll for Pro Memoria →

Weapon stats

Stability 50
Handling 45
Range 45
Aim Assistance 46
Ammo Generation 45
Airborne Effectiveness 15
Recoil Direction 79
Zoom 17
Magazine 64
Impact 33
Reload Speed 47
Rounds Per Minute 600

Intrinsic Traits

Aggressive Frame

Weapon Perks

Arrowhead Brake Chambered Compensator Corkscrew Rifling Extended Barrel Fluted Barrel Full Bore Hammer-Forged Rifling Polygonal Rifling Smallbore Arrowhead Brake Chambered Compensator Corkscrew Rifling Extended Barrel Fluted Barrel Full Bore Hammer-Forged Rifling Polygonal Rifling Smallbore Full Choke Rifled Barrel Full Choke Rifled Barrel
Extended Mag Alloy Magazine Appended Mag Armor-Piercing Rounds High-Caliber Rounds Ricochet Rounds Flared Magwell Light Mag Extended Mag Alloy Magazine Appended Mag Armor-Piercing Rounds High-Caliber Rounds Ricochet Rounds Flared Magwell Light Mag Accurized Rounds Tactical Mag Drop Mag Steady Rounds Accurized Rounds Tactical Mag Drop Mag Steady Rounds
Envious Assassin Hatchling Demolitionist Strategist Attrition Orbs To the Pain Reconstruction Tear Lucky Shot Envious Assassin Hatchling Demolitionist Strategist Attrition Orbs To the Pain Reconstruction Tear Lucky Shot
Collective Action Desperate Measures Target Lock Frenzy Dragonfly Tap the Trigger Bait and Switch Elemental Honing Mega Kill Clip Collective Action Desperate Measures Target Lock Frenzy Dragonfly Tap the Trigger Bait and Switch Elemental Honing Mega Kill Clip

What the Pro Memoria perks do

Aggressive Frame

High damage, high recoil.

Arrowhead Brake

Lightly vented barrel. • Greatly controls recoil • Increases handling speed

Chambered Compensator

Stable barrel attachment. • Increases stability • Moderately controls recoil • Slightly decreases handling speed

Corkscrew Rifling

Balanced barrel. • Slightly increases range and stability • Slightly increases handling speed

Extended Barrel

Weighty barrel extension. • Increases range • Decreases handling speed • Moderately controls recoil

Fluted Barrel

Ultra-light barrel. • Greatly increases handling speed • Slightly increases stability

Full Bore

Barrel optimized for distance. • Greatly increases range • Decreases stability • Slightly decreases handling speed

Hammer-Forged Rifling

Durable ranged barrel. • Increases range

Polygonal Rifling

Barrel optimized for recoil reduction. • Increases stability

Smallbore

Dual strength barrel. • Increases range • Increases stability

Full Choke

While Aiming Down Sights: • Decreases Shotgun Pellet Spread by 5% • Reduces Precision Multiplier by 7.6% (1.1078x🠚1.0294x)

Rifled Barrel

Ranged shotgun barrel. • Increases range • Greatly decreases handling speed

Extended Mag

This weapon has a greatly increased magazine size, but reloads much slower. • Greatly increases magazine size • Greatly decreases reload speed • Increases airborne effectiveness

Alloy Magazine

Linearly grants a Reload Duration Multiplier as your magazine drops from 50% capacity to empty. Reload Duration Multiplier scales from 0.9x at 50% capacity to 0.8x with an empty magazine.

Appended Mag

This weapon's magazine is built for higher capacity. • Increases magazine size

Armor-Piercing Rounds

Grants 5% increased damage against Elemental and Barrier Champion Shields. Allows bullets to overpenetrate enemies once.

High-Caliber Rounds

Hits inflict increased Flinch on Enemies. PVE: Tier 1-2 Minors can be repeatedly staggered. Higher Tier Combatants stagger quicker. PVP: Flinch against Players varies based on damage and Weapon Archetype. Flinch increase ranges between 5-10%.

Ricochet Rounds

Rounds ricochet off hard surfaces. • Increases stability • Slightly increases range

Flared Magwell

Optimized for fast reloading. • Slightly increases stability • Greatly increases reload speed

Light Mag

Improved reload and range. • Increases reload speed • Slightly increases range

Accurized Rounds

This weapon can fire longer distances. • Increases range

Tactical Mag

This weapon has multiple tactical improvements. • Slightly increases stability • Increases reload speed • Slightly increases magazine size

Drop Mag

Passively grants 30 Reload Speed with a 0.9x Reload Duration Multiplier. Decreases Magazine Size Stat by 30. (Equivalent to the "inverse" of Extended Mag)

Steady Rounds

This magazine is optimized for recoil control. • Greatly increases stability • Slightly decreases range • Increases airborne effectiveness

Envious Assassin

Upon readying the weapon after scoring Kills with your other Weapons: Refills and/or overfills the Magazine from reserves based on the amount of Weapon Kills scored. Maximum total overfill amount is 200% of the Magazine Capacity. Each activation can only load up to 100% of the Magazine Capacity into the magazine. Loaded ammo per Kill by ammo type (rounds up): • Primary Weapons: 10% of Magazine Capacity • Special and Power Weapons: 20%

Hatchling

Scoring a Precision Kill or 3 kills within 3 seconds of each other spawns a Threadling at the target's location.

Demolitionist

Weapon Kills grant 10% Grenade Ability Energy. Kills with Sniper Rifles, Shotguns, Glaives, and Fusion Rifles grant 20%. Using your Grenade Ability refills the Magazine with a 3 second cooldown. Ability energy gained may be significantly decreased based on your selected ability's Chunk Energy Scalar. Learn more about this mechanic in our explainer blog post on the Clarity website.

Strategist

Weapon Kills grant 10% Class Ability Energy. Kills with Fusion Rifles, Glaives, Shotguns, and Sniper Rifles grant 20%. Class Ability usage grants ? Stability for ? seconds. Ability energy gained may be significantly decreased based on your selected ability's Chunk Energy Scalar. Learn more about this mechanic in our explainer blog post on the Clarity website.

Attrition Orbs

Scoring multiple Hits against enemies within 5 seconds of each spawns an Orb of Power that grants 0.8% Super Energy. Does not require Direct Hits. Hit counter persists through stow. Hit requirements for activation: • Rocket Launchers: 2 hits • Heavy Grenade Launchers: 3 Hits • Wave-Frame Grenade Launchers: 4 hits • Bows: 4 Hits • Swords: 5 Hits • Area-Denial Grenade Launchers: 26 Hits • Others: 55% of Magazine Size rounded down + 1 Support Frame Auto Rifle healing round Hits on damaged allies count as 2 Hits.

To the Pain

Every 30 points of damage taken with the weapon readied grants a Stack of 'To the Pain'. Maximum of 10 Stacks. Stowing the weapon removes all Stacks. Each Stack grants ? Handling and 2 Aim Assist, maxing out at ? Handling and 20 Aim Assist. Self-damage and environmental damage do not count.

Reconstruction

Every 6 seconds while not firing the weapon: Loads 25% of the Magazine Capacity (rounded up) into the Magazine from reserves. Can overfill the Magazine up to double the normal capacity. Works even while stowed.

Tear

Precision Kills Sever enemies within ? meters of the target for ? seconds. ? second cooldown between activations.

Lucky Shot

Finishing a reload within ? seconds of a Precision Kill grants 'Lucky Shot Ready'. Scoring a Precision Hit while you have Lucky Shot Ready refills the magazine by 1 from reserves and begins a 7 second timer. Additional precision hits during this timer continue to refill the magazine from reserves.

Collective Action

Elemental Pickup Interactions grant 30% [10%] increased damage for a variable duration based on the pickup. Can be activated while stowed. Ionic Traces, Stasis Shards, and Tangle Detonations grant the buff for 4 seconds. Throwing a held Tangle grants 4 additional seconds. Firesprites and Void Breaches grant the buff for 8 seconds. Additional Pickups can extend the duration up to the maximum of 16 seconds. Elemental Pickup Interactions: • Destroying a Tangle (or Elemental Orbs), either by shooting or throwing. • Collecting Firesprites, Ionic Traces, Stasis Shards, or Void Breaches Does not trigger with Stasis Shards generated from Facet of Awakening or Facet of Command.

Desperate Measures

Weapon Kills grant 'Desperate Measures x1' (DMx1), increasing damage by 10% for 7 seconds. Grenade or Melee Kills grant 20% increased damage for 7 seconds (DMx2). Scoring another Grenade or Melee Kill with DMx2 active increases this to 30% (DMx3). Can be activated while stowed. Weapon, Grenade, and Melee Kills refresh the buff duration.

Target Lock

Successive Hits within 0.2 seconds of each grant a ramping Damage Buff after scoring 12.5% of the Magazine Capacity as hits. Missing deactivates the buff. Stacks displayed on-screen are only visual aides, the buff ramps up with each shot once active. Reaches maximum strength at 5 Stacks. % of the Magazine Capacity as Hits required for each Visual Stack: 12.5%|35.5%|54.5%|74.5%|110.33% Damage Buff ramps up from 16.73% [10.46%] to 40% [25%] upon reaching maximum strength. Assuming no missed shots, it provides roughly a 25% [15.85%] Damage Buff on average after firing 100% of the Magazine Capacity.

Frenzy

After being in Combat for 12 seconds: Grants 15% increased damage, 100 Handling, and 100 Reload Speed for 7.2 seconds. Works and can activate while stowed. Dealing and receiving damage refreshes the buff duration. For Frenzy, being in Combat is defined as having either dealt or received damage within the last 5 seconds. Self-damage and environmental damage do not count.

Dragonfly

Precision Kills cause targets to explode, dealing up to 123.89 [95.3] weapon-matching elemental damage in a 4.5-meter radius.

Tap the Trigger

Firing grants 'Tap The Trigger' for 0.6 seconds, providing the following benefits: • 40 Stability • 50% decreased Recoil • 10% decreased Accuracy Cone Size Fusion Rifles only receive 25% of the benefits. Buff cannot be refreshed until Automatic Weapons stop firing, or until the next burst. [Controller-Only] Weapon fires the instant trigger pressure is applied.

Bait and Switch

Dealing damage with a weapon starts a 7 second timer. Dealing additional weapon damage resets the timer to 7 seconds. Dealing damage with all 3 of your weapons without letting the timer run out grants you 'Bait and Switch' for 10 seconds, granting 30% increased damage. Timer is disabled while Bait and Switch is active, requiring a full activation sequence once the buff expires.

Elemental Honing

Dealing Elemental Damage grants a stack of Elemental Honing for 20 seconds for each unique Element used. Maximum of 5 stacks. Gaining a stack refreshes the buff duration. Duration cannot be refreshed once at 5 stacks. Buff can be activated while stowed. Kinetic Damage does not trigger the buff. Weapon damage increase at 1|2|3|4|5 stacks by weapon damage type: • Kinetic: 10%|20%|30%|35%|40% • Elemental (PVE): 2.5%|10%|20%|30%|35% • Elemental (PVP): 1.25%|5%|20%|30%|35%

Mega Kill Clip

Finishing a reload within ? seconds of a Weapon Kill grants 40% increased damage for a duration based on the number of kills achieved before reloading. Maximum of 20 seconds. Base duration is 3 + 2 additional seconds for each kill scored before reloading (One kill is 5 seconds, two kills is 7 seconds...) Additional kill-reloads will additively stack on top of the currently active timer, extending its duration up to the maximum.

Pro Memoria in Destiny 2

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