Mac.
Either one of my two Handi's have no gap, they are tightly fitted to the standing breech. In this, the case- head has to be at least flush with the face of the barrel nothing whatsoever sticks out..
So a one to two thou head space works well enough.
For the 6x47 I had a custom Benchrest die made with a 262 neck size bushing. The die will size the body one thou less than fired and set the shoulder back what ever is needed.
The necks are outside reamed to 0.0108 and the bullets will have about 0.0025 tension. I also have a 261 bushing if I need a bit more tension with the Moly bullets.
This is not the average Handi environment but the results are good with gopher of angle accuracy.
Just about ready to go when I get the custom scope bases finished. They are a fidly job and it taxes my patience specially after doing nothing all winter.
I know Fred...Yours is set up way different than what 99.999% of Handi's are to begin with...and since you have no barrel gap to begin with..makes it all the better to set your cases perfectly from the get go....This is why I said what I did....Not all Handi's are equal in this regards...
NEF has gotten soo much better lately in this department...and the barrel deminsions are much better than it was just 3 years ago...Since we are loading for a single shot..we have a-lot more latitude with this than with a bolt gun.With the Handi..you can measure your exact amount of headspace on each shell..and this is what is recommended for correct functioning and optimum accuracy with standard Handi's.
If a person takes their barrel off..and drops a new case into the chamber..and they measure if the case is flush-below-or above the chamber opening..then they can determine if it will work properly.They make a tool specificlly for doing this..or one can use a feeler gauge set..
One has to adjust the dies and set the heaspace for each rifle..For a reloader..this is a extra step but one well worth the effort..for the non-reloader..they can do the same thing with factory ammo..
If a person has already measured the barrel to frame gap..and have found it to be .003"-.004".....and then they drop a new case into the chamber..and it drops below the rim by .002"...then they will have started with a case that has .005"-.006" headspace..now...what kind of performance will their Handi give then?
??
I've resized like this like before..and and now resize as I have described..the accuracy,and performance is gone setting up the resizing die to induce headspace..most likely you'll get major case stretching..and flatten primers..long before anything else..not to mention trying to work up loads on a ladder test..you'll never achieve the performance from this case loading it this way....
Now..say a person has dropped a new factory loaded cartridge into the chamber..and it drops below the rim by .002"...and their barrel frame gap is .003"-.004"...this same person will not get good performance or consistancy from this paticular lot of ammunition either..and folks wonder why they get flyers and factory ammo that doesn't shoot good..cases sticking..flatten primers,and excessive case stretching.....they need to confirm that
none of thr cases start below the rim..and reject the ones that do..
Each lot of factory ammo...and each lot of new factory brass will have cases they vary in lenght in them...they are usually all within "specs".....and it is up to the Handloader to check them...and not assume they are all the same...because they are not...Some will be flush..some will be above..and some will be below the rim..
All the ones that come closet to fitting the barrel frame gap will give the best performance.....
This is why a reloader needs to have the barrel frame gap measurement to begin with..
before you start reloading and a non-reloader needs to know this too...and check the factory ammunittion..It's better to be at a neutral level... with the case peferctly flush with the rim of the chamber...than to start off at a negative level with it below for most Handi's...
and it's even better to have the case sized to fit perfectly to include the barrel frame gap...providing the chamber and throat are true..the best accuracy will be easiest to achieve ..
There will be a bit of resistance doing it this way of course..but the case is loaded 1 at a time and by hand....You'll only need to bump the shoulder back when you go over the barrel frame gap measurement...and if the case is to fat..getting a body die that leaves the neck alone and allows you to bump the shoulder works great as well...
Mac