there were a ton of odd variations in that transitional era when BP was switching to early smokeless, and cartridges were non-industry standardized and some-times of a "proprietary" design to the gun-builder.
I have a kind-of bottleneck nominally 11mm Mauser---originally a "proprietary" BP cartridge---in a lovely little break-open stalking rifle. I ended up making a chamber cast and sending it to the original owner of RMC and he made me 20 cases to match. He turned them with the outside BN case shape but the inside is straight walled almost like some of these old "everlasting cases". They work fine with moderate loads of modern bulky smokeless like 5744.
Another one of my "prized jewels is a heavily engraved Aydt in an 8.15x46r variation. with the help of Westerner I was able to determine it was in the 8.15x52 Frohn He has or had a rifle in the same cartridge. Mine seems to be cut a little long in the neck, more of an x54. Basically it's a elongated version of a standardized 81.5x46r.
I have made it from longer 38-55 brass to get the full length case using standard 8.15x46r dies and then fire-forming to move the slight shoulder forward. I use a stop ring bullet bullet from Accurate Molds designed of fit the case and throat the way I think is proper.
An Aydt is an easy action to breech seat so non-stopring bullets should work well in them. Even standard 8.15 cases would work with breech seating as long as you flare the case mouth to get good gas containment
The attached case drawing is one Joe sent me. It's kind of hard to read (especially if like me you don't speak German
) if it's made much smaller but the measurements are possible to make out.
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Needed. Load imfo. 8.15 x46r (Read 6424 times)
