A full list of weapon mastery rolls for each weapon type and tier. With thanks to the Defiance team for helping with the data.
All individual weapons pages also have their own tables
2 Clip Size
3 Clip Size
x0.94 Reload Time
+15% speed boost for 5 seconds after a full reload
10 +[%AMOUNT]% Crit Mult when crouched
x1.03 Aim and Hip Damage
5 Clip Size
x0.91 Reload Time
x0.95 Spread
x1.1 +10% Movement Speed
+30% speed boost for 5 seconds after a full reload
15 +[%AMOUNT]% Crit Mult when crouched
x1.2 -20% Reload while standing still
x1.05 Aim and Hip Damage
6 Clip Size
On full reload, reduce EGO Power cooldown by 5 seconds
x1.08 Rate of Fire
x0.8 Recoil Per Shot
x0.88 Reload Time
x0.9 Spread
x1.15 +15% Movement Speed
+45% speed boost for 5 seconds after a full reload
25 +[%AMOUNT]% Crit Mult when crouched
x1.3 -30% Reload while standing still
x1.08 Aim and Hip Damage
8 Clip Size
x1.15 Critical Multiplier
On full reload, reduce EGO Power cooldown by 10 seconds
x1.1 Rate of Fire
x0.75 Recoil Per Shot
x0.85 Reload Time
x0.85 Spread
x1.2 +20% Movement Speed
+50% speed boost for 5 seconds after a full reload
35 +[%AMOUNT]% Crit Mult when crouched
x1.4 -40% Reload while standing still
x1.1 Aim and Hip Damage
10 Clip Size
x1.2 Critical Multiplier
On full reload, reduce EGO Power cooldown by 15 seconds
x1.12 Rate of Fire
x0.6 Recoil Per Shot
x0.8 Reload Time
x0.8 Spread
Stratotech Defiance 2050 [Source]
3PL9 WDFG DKPR 9LE7 P7Y7 [Redeem]