257 weatherby mag load data.

[cummin_un_glued]

going to pick up some RL 25 for mine tomorrow, anybody got a pet charge for that powder ?

 

[mrultramag]

W/RL25, I would start around 71-72 gr and work up from there. Usually max is found to be around 74.5 to 75.5 gr. I think the best accuracy I got was around 3400 fps. I think I ran them as fast as 3450. I was using WBY brass, Fed 215M, OAL 3.250 in a vanguard sub-moa. its a 24" bbl. So if you have a 26" bbl you'll see a little more speed probably.

 

[cummin_un_glued]

I have the same rifle and wby brass so I should end up close to the same thanks for the data

 

[Physhstyx]

W/RL25, I would start around 71-72 gr and work up from there. Usually max is found to be around 74.5 to 75.5 gr. I think the best accuracy I got was around 3400 fps. I think I ran them as fast as 3450. I was using WBY brass, Fed 215M, OAL 3.250 in a vanguard sub-moa. its a 24" bbl. So if you have a 26" bbl you'll see a little more speed probably.

What bullet weight for this data?