01-17-2022, 01:34 PM
Drifter Wrote:For the 123gr A-max, your load using 28.5gr of 8208 is somewhat hot in my Grendel chamber (using CC #41 primers). 28.0gr or slightly less does reasonably well. Same charge using AR-Comp has been more accurate for me.
As for the 129gr SST, I get good results with 27.0gr of AR-Comp, and decent results with the same charge using 8208.
While a barrel might perform well with a variety of powders, I see less temperament with accuracy when switching bullets if the same powder is used for both (assuming the powder's burn rate is appropriate for bullet weights being used).
Im seeing over pressure signs with 123 gr A Max over 27.5 gr of 8208. It shoots very well but Im concerned about the pressure
( flattened primers, imprinted case head). Im using Hornady new brass. Any suggestions would be greatly appreciated.

