This is a modified version of THeMooN85's Kuva Ravage Tonkor. His build is focused on burst and sustained DPS, but I wanted a build that was focused on occasional single-shot damage (average hit). The idea should be fairly obvious: you don't always need sustained DPS, you might do most of it through your Waframe or other weapons. There might be other reasons, but regardless.
The changes are simple:
Primed Magazine Warp has been replaced with Serration (I'm dumb, so it might not be the best alternative) for extra base damage, and since we'll not be shooting much, the marginal utility of the extra round without reloading is much lower.
Cautious Shot has been replaced with Vigilante Supplies because of both the extra crit and the extra ammo replenishment, which this weapon can definitely use. Since the idea is not to use the weapon constantly, you can ditch stagger protection and just be a bit more mindful of where you shoot, it should be much less likely you'd use the gun at close range. So again, the marginal utility of it decreases significantly. Plus, you can run Primed Sure Footed if you feel you need the stagger protection.
This way you increase the Avg hit by more than 113K from 307K to 420K, that's 37% extra, at the expense of 193K (or 31%) burst DPS, which is the relevant measure for the intended use, since we want to occasionally fire just one shot. Sustained DPS doesn't suffer as much, losing about 46K or 17%, so it should still be roughly as usable as the original build in case you needed to rely on it in a pinch.
I also made this other similar build that has extra ammo for the cases when the standard stock + Vigilante Supplies doesn't cut it: Kuva Ravage Tonkor - Extra ammo edition