Range of Absorb Nuke is given by the formula : 15 x range% + ( SQRT (5 x damage absorbed) / 50 ) and is capped at 50m. This means even at 34% range, after absorbing about 1 million damage you will hit the 50m cap. At 145% range you will have a starting base range of 21m and need to absorb about 390k damage to hit 50 m cap. Just note that damage dealt by Mind Control and Radiation procced enemies do NOT contribute to the range, which means you will probably need to absorb a little over what is displayed to hit the range cap.

Pillage helps strip in a radial aoe faster than psychic bolts can spread.

At base steel path a level 120 steel path corrupted heavy gunner has about 500k health and 5 million EHP (with armor).
At level 9999, a steel path corrupted heavy gunner has about 10 million health and 100 million EHP (with armor).

If you armor strip, you reduce the required absorbed damage by 10x meaning you can spend less time absoring in between intervals of nuking. If you add Arcane Truculence to this with casts of Psychic Bolts you can inconsistently get 30m range of 10 viral status which multiplies all damage by 4.25x, further reducing the required damage absorbed. For example at levelcap we can reduce the amount required to oneshot a corrupted heavy gunner from 100 million to 10 million after full strip, and further to 2.35 million after 10 viral. This takes between 1 to 5 seconds meaning you could potentially release a 50 m nuke once every 5 seconds. Just note enemies deal quite little damage at base steel path and take a while to start scaling damage to make absorb nuking worth while (i.e. level 1000ish).