Your best option is a Near Alphahunter. It's a direct mount made out of hardened steel, machined and finished to very tight tolerances. It weighs 3-4oz depending on size/height.
I have/had many mounts including leupold DD, weaver, Tikka 'one piece', DNZ, Near Alphahunter (thanks Kman), seekins, Warne... Off the top of my head.
Near is, in my opinion, the best. The best comes with a price also, however.
Personally I prefer the utility of a Picatinny rail whenever something goes wrong. It's nice to be able to swap a known working scope over to a rifle if something goes funny. It also affords the opportunity of zeroing a second scope, and then packing it along as a backup or alternate.
A rail also makes it easy to verify torque on the fasteners holding the base to the action. With a direct mount, one has to take the scope out of the rings for this. Some get around this by epoxying the base to their receiver and/or using a thread locking compound.
The DNZ Gamereaper works. The examples I have had are certainly in a different class than Near and seekins. No recoil lug, inferior materials.
I've noticed a significant difference between materials. Not all aluminum is equal. Comparing 6061 to 7075 rails, over time, the 7075 stands up a lot better, just as the materials data suggests. (7075 has almost twice the tensile strength).
I think top quality mounts are a worthwhile investment, but are by no means required. They can take some frustrations and guesswork out of the equation and make for easier maintenance. Hard to beat Seekins for heavy duty, light weight, precision mounts.
My .02 anyway....