Q: I have a Winchester Model 70 Super Grade which was originally a .30-06 that I had rebarreled to .25-06 with a 650mm barrel. Mostly, I load Nosler 100gn Partition bullets using AR2213SC. This gives excellent accuracy. I also have a .340 Weatherby Mark V De-Luxe in which I intend using 250gn Partitions as it shoots them very accurately in factory ammunition – albeit at $12 a shot!
Can I expect similar results using AR2213SC in my .340 as it would be easier using one powder for both guns. Or would I get better results using slower burning AR2217 for the 250gn/.340? If so, will the .25-06 handle AR2217?
A: Hodgdon lists loads for AR2213SC in the .340 Weatherby Magnum as follows: the 200gn Speer and 85gn for 2837fps to a maximum of 90gn for 3030fps; the 225gn Hornady, 81gn for 2620fps to 86gn for 2889fps; and the 250gn Speer and 78gn for 2487fps to 83gn for 2784fps. AR2217 is only listed with the heavy 300gn Woodleigh bullet and is probably too slow for lighter bullets. The highest velocity with the 250gn Woodleigh is gained with a maximum charge of 93.5gn of Reloder 25 for 2900fps. AR2217 is way to slow in the .25-06.