Old_No7
If you intend to shoot a stop ring bullet, why would you want to crimp it? You can accomplish the same thing with case neck tension to firmly keep the bullet in place. If you use neck tension, then there is no reason to use a stop ring. 
See where I'm going with this? With neck tension just forget the stop ring and use a bullet that's about a .001 over groove diameter. The stop ring is there so you don't have to prepare conventionally loaded fixed ammo. If you shoot fixed ammo, a stop ring bullet serves no purpose.
Hope I haven't gone in too many circles for this to make sense.
By the way, I shoot a stop ring in my Aydt 8.15XR and do not neck size.
Good luck

I use stop ring in loaded cases with no crimp in my JP Sauer.  Does fine.

Hello #7
I have an Anschuetz Schuetzen with a Martini style action in 8.15X46R. It uses a SR bullet.
I’m a little new to this caliber, but what you mentioned is what I have also found.  Using a SR bullet the case is not sized just de-primed, re-primed, charged and then the bullet is seated by hand. The limited shooting I have done I hand dipped the SR bullet in lube and slide it in the case. The lube “lightly” glues it in place.  Since I believe the SR load was primarily used on target ranges, there was no need to secure the bullet any further.   I think if the SR is correctly sized for the chamber/throat, it will apply that uniform restraining normally applied by crimping. The SR diameter is usually just a bit smaller than the outside of the case mouth and a bit bigger than the grove size.
Like BR shooters today, I think the Schuetzen crowd did a bit of reloading at the range and negating the need to size cases maybe made that more convenient. Might be other reasons; don't know.
For what it’s worth, I had Accurate Molds make me a non-SR style mold. It’s 180 gr and sized to fit my bore (0.314”). To load these I run the cases through a FL sizing die, bell the mouth with a 32-40 plug then seat the bullet conventionally with a 8.15X46R (RCBS) die that just kisses the crimp section enough to remove the bell.  These have worked very well at 100 yards; need to do some 200 yd R&D when the weather improves.
This caliber seems to have wide variations in bore/grove diameters so best to slug the bore.
Mike.

westerner wrote on Mar 12^th, 2018 at 9:06pm:


      This fits right in with my experience.   If the "ring" fits the leade, and the base of the bullet fits the neck of a fired case, you should be good to go.    Just got back from the range, shooting a load like that.   But for the gusty wind, I would think it was shooting about 1.5 MOA, which is pretty good for a rifle stocked like the German guns.  Groove diameter is .316, base diameter was .325".   An extreme example, which shoots even better, is a bullet with .328" base (to fit the case), and groove diameter of .299".   My "standard" alloy is 3% tin.

CHRIS
RGChristensen