1-2 Extra Chained Energised Hits and 2.5-10% Impact on Energised Hits.
5-8% Strength for 4.5s on Kill. Stacks 5 times.
4.25-5% Strength for every Enemy you Stagger. Stacks 5 times.
Target receives 1-4 Stacks of 2.5% Brittleness on direct projectile hit. Debuff lasts for 5 seconds and can have a maximum of 16 stacks.
This not best build, in non-perfect and non-balanced in boltguns game, but you can try in too; maybe you will be happy in another suicide mission succeed