Tainted Clip

Tainted Clip increases pistol magazine capacity while decreasing reload speed.

Stats[]

Rank	Magazine capacity	Reload speed	Cost
0	+10%	-5%	6
1	+20%	-10%	7
2	+30%	-15%	8
3	+40%	-20%	9
4	+50%	-25%	10
5	+60%	-30%	11

Mission Type	Source	Rotations or Drop Table	Chance^[1]	Quantity^[2]	Avg. per roll^[3]	Star Chart Nodes
Orokin Vault	Orokin Derelict Vault	A	4.17%	1	0.0417	Any mission node on Deimos except Cambion Drift, Magnacidium, Exequias, and Hyf

Enemy	Drop Table Chance^[4]	Item Chance^[5]	Chance^[6]	Expected Kills^[7]	Quantity^[8]	Avg. per roll attempt^[9]

For any non-integer magazine values the magazine size is simply rounded to the nearest whole number. For example, a Angstrum modded with a max rank Tainted Clip will have a calculated magazine size of 3 × (1 + 60%) = 4.8, which will simply round to 5.
Stacks with maxed rank Ice Storm and Slip Magazine / Primed Slip Magazine for an added magazine capacity of 130% / 155% or total capacity of 230% / 255% respectively.
When stacked with Ice Storm, one can easily replace most dual secondary weapons with double the magazine capacity, and a faster reload speed. This may hamper fire rate in comparison to most dual weapons but does retain the general accuracy of single secondary weapons.

Update 10.3 (2013-10-09)

↑ Chance to roll item within drop table
↑ Amount rewarded on successful roll
↑ (Quantity × Chance)
↑ Chance to roll drop table
↑ Chance to roll item within drop table
↑ (Drop Table Chance × Item Chance)
↑ (1 / Chance), see WARFRAME Wiki:Expected & Nearly Guaranteed Numbers for more details
↑ Amount rewarded on successful roll
↑ (Quantity × Chance), average item quantity on a roll attempt (successful or not)

Corrupted Mods
Warframe	Blind Rage • Catalyzing Shields • Fleeting Expertise • Narrow Minded • Overextended • Transient Fortitude
Rifle	Critical Delay • Depleted Reload • Heavy Caliber • Tainted Mag • Vile Acceleration • Vile Precision
Shotgun	Burdened Magazine • Critical Deceleration • Frail Momentum • Tainted Shell • Vicious Spread
Pistol	Anemic Agility • Creeping Bullseye • Hollow Point • Magnum Force • Tainted Clip
Melee	Corrupt Charge • Spoiled Strike

Ammo Mods
Sentinels	Ammo Case
Reserve Ammo	Ammo Drum • Shell Compression • Trick Mag
Magazine Capacity	Ammo Stock • Atomic Fallout • Magazine Warp ( Prime) • Shotgun Elementalist • Slip Magazine ( Prime) • Wildfire • Ice Storm • Tainted Mag • Tainted Clip • Burdened Magazine
Ammo Mutation	Rifle Ammo Mutation ( Prime) • Sniper Ammo Mutation ( Prime) • Shotgun Ammo Mutation ( Prime) • Pistol Ammo Mutation ( Prime) • Arrow Mutation • Vigilante Supplies
Ammo Pickup	Amalgam Daikyu Target Acquired • Rifle Scavenger • Shotgun Scavenger • Sniper Scavenger • Pistol Scavenger
Ammo Efficiency	Skull Shots • Brain Storm
Ammo Refund	Blood For Ammo • Wild Frenzy
PvP	Maximum Capacity • Loaded Capacity • Full Capacity • Hydraulic Gauge • Hydraulic Chamber • Hydraulic Barrel • Draining Gloom