borithan said:
Perhaps 1d10+7, as a sort of "middle ground" between both types of bolters? A slight boost to get some distance to lasguns again, yet not enough to overpower plasma and melta weapons. Or, worst case, just take the middle ground for all those weapons as well.
I'm a bit torn on the 2d10 idea - on one hand, it is certainly nice to have a solid minimum damage compared to just "2", but on the other there's Tearing - and even if you roll low a number of times in succession it could represent "overpenetration" … meaning the bolt going in on one end and leaving it on the other before detonating. Granted, they seem to have got a microsecond density-triggered fuse (at least if one were to interpret "mass-reactive" this way) … but perhaps then it could be a grazing shot or something.