I have a great idea but it involves all the experimental stuff I've heard and read about IRL as well as other SCI-FI and BT itself. first off gauss is a very unstable and inefficient way to use electricity to launch a projectile and takes extra work to sync up each coil. a railgun needs a tougher barrel to keep from splitting itself apart but has no need for moving parts nor in particular for a special timing/syncing system to work properly. you just run the charge on each side of the barrel and the opposing charge pushes magnetically inclined projectiles out.
now caseless and pulse technology; not pulse-lasers but the idea of igniting the propellant from all sides at once via electric charge. from what I've read about caseless munitions that would be an ideal combination instead of adding a mildly volatile primer cap. also pulse ignition is vastly more efficient and is being experimented (IRL) on for jet propulsion as well (the aurora project, supposedly. other more official public research is being seen nowadays too though, again IRL)
now I want to talk about custom munition. think of a projectile shaped like the so-called aurora of one of the SCRAAM-jet concepts. build something that looks like that with a special blend of hardened metals and a diamond point on the nose capping a hollow-core through the projectile that a pulse laser shoots through as the propellant gets zapped. this would superheat the core and the flightpath in front of the projectile possibly even softening up the target as well if within effective range which would probly be within minimum range. now back to the special blend of hardened alloy; using the type of machinery used to condense carbon into industrial diamonds to make the initial projectile -before coring it out and adding a diamond-point- as compact, rigid and hard as possible the design-team managed to figure a way to make it so that the metals in the heated core would ignite as a plasma rocket adding still more to this projectiles already extreme velocity.
so with all that fluff I want to make all the specs for such a weapon and figured I'd put it on the board as a creative line of thought. I probly don't need to figure the pricing (just assume astronomical, and not for sale) but I'd like to try and figure how I should equate this into Tonnage and critspace, BV, and maybe get some idea's as to where I should place the range and damage values at.