Re: Load Data - 340 WBY
FWIW - I called Barnes today to see what they had. He said to use any data for a 275gr bullet for either the 265gr or their new 280gr LRX bullet and use the slower burning powders to get better velocities - H1000, IMR 7828, etc.
Doing some online search, I've found the following starting loads for 275gr bullets:
84.0gr IMR7828 2600fps
81.5gr RL-22 2650fps
I still haven't found anything for H1000 or RL-25. I'll probably extrapolate those values from the data given above. Right now, I'm leaning towards IMR7828, RL-22 and H1000. Probably not going to use 4831 or 4350 as the velocities are quite a bit lower.
If anybody has better data, I'd appreciate anything you post. Regards.
Sneak close, aim small, hit hard!