Perhaps a RoF bonus for the Gallente could also work, but it should be very slight. Maybe even a RoF and range bonus could be worthwhile. For RoF, a max of a 5% bonus should be applied, which sounds pathetic, but that increases Assault Rifle RoF from 800 to 840 (close to a Balac's of 856.14, and with that bonus, the Balac's would have a 898.947 RoF).

The Caldari Assault... I really can't think of anything other than a decrease to charge-up time, which is the unique property of all Caldari Weapons (other than the swarm launcher and missile turrets). We could keep the reload bonus and just include it with the charge-up decrease I suppose... I know others thought of recoil reduction, but in actuality there is no recoil for the Rail rifle whatsoever. The sight is bouncing everywhere, but the center dot never moves... ever. It's 100% accurate. The Magsec has a little, but it's easily controllable.

Sorry, that was lengthy, but thanks for the feedback and response.

For Gallente :
A RoF buff would become a bit OP I think...
5% a level ?! Are you crazy ?
2% is enought, with 2% you can have 880RoF that's amazing

For the Caldari :
Charge up time ? That's not the only bonus which can be very interresting fir the caldari... A kick reduction bonus should be very very good for the Caldari. The RR has a big kick, and it should be improve...for the assault

Clarification: Not 5% per level, a maximum of 5% for the total bonus (1% per level).

The Rail Rifle really doesn't have any kick whatsoever, it's just what some fps developers refer to as 'visual kick' or 'illusionary', as the Rail Rifle sight jumps everywhere, yet the actual center dot hardly moves at all (if at all).