Thanks. I have something similar for the M1903, I'm just not sure how much I trust it on that little tiny shoulder. What I'd really like is something similar to the one Hornady makes for the 30-06, where you drop the round into the "chamber", and if it's above the top it's too long, and if it's below the indent it's too short. Making one of these would require two things: a chamber reamer and me having the machinist skills to wield it. Of the two, the former is probably easier to find.
I would like very much to find a 'go / no go' gauge for the 9.5X57 but have never seen one listed nor offered anywhere.
You absolutely want the shoulders of your cases to be of correct depth for the 9.5X57. I initially set mine by using the measurements from the old American Rifleman chart, then compared to original 1920s DWM 531 unfired cartridges that had been in the MS' fitted case since Grand Dad's days (they can now be found on the 'net). After my handloads were fired, the shoulders 'squared up' a bit but did not change depth.
When setting your die start a bit long, dial down in small increments until you're exactly to the proper shoulder depth. Do the same when seating bullets. Then set those screws and leave them alone.
I have another sizing die that I found on Ebay a few years ago that I will use for the Nosler Solids or any others I may use so that my first die can remain unchanged for the Hornady 3715 which very closely replicate 'factory spec' projectiles.
This fuzzy scan shows:
A) Reload from Reed's Specialties*
B) One of my original handloads, unfired.
C) Original (1924 vintage) DWM
D) One of my handloads, fired case.
A) *Reeds, of Oklahoma, is a good outfit to deal with. He provides handloads made from fresh Norma brass that he has drawn straight before sizing which is a very good idea, particularly if 'donor cases' are _X57 which have lower and narrower shoulders than does 9.5X57 MS. I forget the headstamp just now, don't have any in front of me.
B) Loaded 35 or so years ago with fresh Remington (R-P .35 Whelen headstamp) brass and Hornady 3715, sized in single pass through RCBS dies then cut to length, loaded. The .35 Whelen shoulder gets pushed back quite a bit when sized to 9.5X57 (as would .30-'06), so depth comes out spot - on. The shoulders did come up slightly narrower and 'softer' than specified on the Eley drawing but are identical twins to original, unfired, DWM 531 cases.
DWM 531