Load for .340 Weatherby and Swift A-Frame

[Laelkhunter]

Another thread about my .340 Weatherby.

Trying to find a decent load for the 225 grain Swift A-Frame.

Powders I have on hand :

IMR-4350
IMR-7828
Reloader 22

Thanks for any starting or accuracy loads with the above powders.

***** edited to add: Primary use will be for Elk Hunting in the Rockies, range from 200 to 400 yards

 

[Laelkhunter]

After testing various powder charges (only tried IMR 7828, and Alliant RL 22), I found the most accurate load to be 88.0 grains of RL 22 with the 225 grain Swift A-Frame, resulting in about 2970 fps. Best group size was .75 " at 100 yards. Still breaking in the new barrel, so hope to shrink the group size a little more when finished.