I recently asked my boot fitter about this and he said that's normal, that they have a narrow toe so there is usually some dead space in the front.
My conclusion is different: If you don't have narrow toes, don't wear Riedell boots.
I once went to a competition where a Riedell rep did fittings. The Riedell rep took one look at my wide toes (roughly twice as wide as my heels), and told me no Riedell boot would fit me. Other reps for Harlick and Klingbeil (no longer in business) thought I could be fit by them in custom boots, though the Edea and GAM reps said their boots couldn't fit me either, and the Jackson rep told me Harlick would probably do better.
I would initially hesitate to heat mold or take time to break the boots if you think they don't fit - it makes it less likely that the fitter will accept a return. If the fitter won't take a return, I would contact Riedell, and ask what to do. They might possibly talk the issue over with the fitter and suggest a fair resolution. Maybe you should trace your foot on a piece of paper, and Riedell send a FAX or scanned image of it. Include rulers along both axis in the scan, because FAXes and scans aren't always to exact scale. A tracing doesn't show the full 3D shape, but is better than nothing.
However, if a return is not allowed, most reputable skate boot sellers will do heat molds on boots you just bought from them for free. If that isn't enough, we can suggest a number of solutions in addition to the heat mold.
Part of the issue is that a boot that is too long has a significant probability of the bottom of the boot bending upwards in a position other then the ball of your foot, which could create a serious injury. In fact, is it possible that the fitter actually did measure the length from your heel to the ball, and based the size on matching that? One well respected fitter told me that that length is usually the most important one, rather than the total length. (The front of the boot itself has very little effect on skating, though if the fitter picks the blade length by the length of the outsole, as most do, I suppose it might.
Regardless, you probably shouldn't produce bumps on your feet from using boots. Something is wrong.
You are tying your boots fairly tight, right?