H4895 105 amax. Max load???6br
- Thread starter viper
- Start date
27.5 is the max recommended by Hodgdon. Some have loaded it up to 29.5 or so. Obviously work up to that while watching for pressure signs. See link below:
6BR Cartridge Guide
Actually they are the same thing. The Hodgdon load data is equally applicable to the 6BR Norma. For all practical purposes the 6 BR Remington does not exist any longer. The very first cartridges were developed by the Remington Benchrest team, but never standardized. They differed from the current 6BR Norma or Remington in that the primer flash hole was larger, and the neck shorter. Remington only chambered these in their expensive benchrest gun the 40X. So a few may be around, but not many.
The current cartridge was standardized by Remington to the current overall dimensions. Norma redid it again and decreased the flash hole, and changed the specs for the chamber (not the brass).
Net result the only guns that have a bit of an issue are the original 40X guns or any customs chambered after them. If you put a modern 6BR case in them, it will be too long and cause major pressure problems if you manage to chamber it.
You can piece the story together from the Sierra Load Information at the link below, and the Norma blurb on the cartridge.
Sierra Load Data
6BR Norma
