Sierra load manual

[Webster]

This might help

Just looked at the data. I have very little data for the 55 gr bullet. I have shot 1000s of 58 gr Hornady with 8208 powder. The max ;load on that data sheet for 8208 is way over what I can shoot in my 6BR Norma. My standard load is 33.3 gr of 8208 at 3585 fps. At 34.0 gr I start to see ejector hole swipe marks.

 

[SSchnd]

Sierra App has the 6th edition info. 6BR Norma and Rem are both listed.

 

[charlie b]

Most of the time I find Sierra to be a bit more conservative on load data, ie, their shot velocities are lower than what I get with the same charge (yes even when they used the exact same rifle I own). Vihtavouri shows velocities closer to what I get. Hornady max loads frequently result in flat primers and sticky cases.