212eldx in .308 hybrid cases?
- Thread starter Eo12
- Start date
As I've mentioned in another thread, I've sorted through 5 boxes of these hybrids. From the 5 boxes I received, 287 of them have the "24" headstamp, 158 have the "277 Fury", 87 have the "23" and 22 just have the "Sig" for a total of 554 cases altogether.
The 24's were the heaviest and the 10 of them that I fire formed had case volume of 56.3 grs H2O. Most of the 23's were in the same weight range as the 24's, but a few were substantially less. The "277 Fury"s were consistently way lighter than the 24's and those few Sig's were about the same as the Fury's. Once I fireform the Fury's I've loaded up, I suspect the case capacity will be more like ~57.5 grs of H2O due to that weight difference.
The ten 24's that I only fire formed produces really good results both on paper and in terms of SD's and ES's, which surprised me as I had loaded them with the same primers I had removed in order to anneal and size them up to a .308. But then, it's only 10 rounds fired.
The 24's were the heaviest and the 10 of them that I fire formed had case volume of 56.3 grs H2O. Most of the 23's were in the same weight range as the 24's, but a few were substantially less. The "277 Fury"s were consistently way lighter than the 24's and those few Sig's were about the same as the Fury's. Once I fireform the Fury's I've loaded up, I suspect the case capacity will be more like ~57.5 grs of H2O due to that weight difference.
The ten 24's that I only fire formed produces really good results both on paper and in terms of SD's and ES's, which surprised me as I had loaded them with the same primers I had removed in order to anneal and size them up to a .308. But then, it's only 10 rounds fired.
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