I use Redding dual ring dies for the calibers that they offer that I load for. They are the compromise for the coke bottle effect you see with single ring dies but they are expensive and aren't offered in anything but the most common calibers.
They keep the body of the case more to the size of factory brass and only neck size the case for full effect. (neck tension).
It kind of sounds like that's what you are thinking about.
I tried just neck sizing brass for in my revolvers but they are to close to the same size as the chamber that they have to be perfect to slide in there.
The dual ring Redding die fits the chamber and centers the rounds really well but don't try to use those rounds with a speed loader. You will be disappointed.
They won't fall right in there like single ring resized brass does because single ring die resized brass is actually undersized down through the body.
If you are just target shooting and loading for the calibers that Redding offers this die for you may want to check them out.
I bought this die because the indoor range I was shooting at didn't allow reloads. My loads with this die, in factory boxes, fooled everyone there.
These .357mag loads are with 158gr bullets, that are what the Redding .357mag dual ring die is calibrated for, to get this look. Those dies are $103.00 each and if you want to load 38 Spl than you have to spend another $103.00 to buy that die.
If you want to just raise your resizing die up to just neck size the case your loading, the body will be oversized even more and will be even harder to get to fall in the chamber. They will go in the chamber with no problem, I used to do this before I bought this die.
With low pressure loads you can get away with it easily.
With high pressure loads you will have to spend the $103.00 for Reddings dual ring die or just use the single ring die you have been using right along and not worry about.
Single sized dies have been used for over 100 years to size our brass and with the single ring carbide die, it got even easier.
Personally, I really like the Redding dual ring sizing dies but they are only made in about 5 or 6 calibers and won't accommodate all different weight bullets that are out there for each caliber. With .357mag, only 158 gr and up will look this perfect.
I can't say those loads are any more accurate than my single ring die loads are, I can't shoot well enough off hand to tell. A Ransom Rest may show something but I doubt it.
They do make me happy to look at them and that means a little bit, but in the larger scheme of things, in my opinion, it's all cosmetic.