I get this with the 147ELD and Forster seating dies. Annealed Alpha brass. 2 thou neck tension.
Well, the bullets are marked, but not as much variance in OAL.
I never figured out what causes it, but settled on a similar hypothesis- ELDs are soft. Accuracy is still good at 100M and distance, so I’ve tried to ignore it. Hard on my OCD tho.
