WC846 in a 270 Winch??

[Jeffery8mm]

Has anyone ever used 846 in a 270?? If so what charge for a basic 130gr Horn SP would be best?? This may not be the ideal powder for this round, so any and all info will be appreciated.

Thanks
Jeff

[wiljen]

I'd suggest using starting loads for the 130gr bullet from Bl-c(2) data for the 30-06. Hodgdon doesn't list a whole lot of bl-c(2) data for the 270, but seems to have 30-06 covered pretty well. With the 270 operating at a higher pressure than the 30-06, it offsets the diameter difference pretty effectively and 130-150gr loads can usually be extrapolated from 30-06 to 270.

[BCB]

Jeffery8mm,

I am not sure of the burning rate of that powder, but is suspect it is a bit slower than H-335. I use WC-844 and my lot is a bit slower than H-335. IF your lot of WC-846 is in the neighborhood of H-335, it probably is too fast for the 270 with anything greater than 100 grain bullets, then it probably still isn't all that great. Good-luck...BCB

[felix]

Yep, the H335-BLC2 stuff is a little fast for the 270W, so underload it for sure. Use circa 45 grains with the 130. Should do 2750 fps at that loading. ... felix

[Jeffery8mm]

Thanks guys!!! This 846 may be better suited for the 30 cal stuff. Just wondered about the 270. wiljen, I have often wondered why 30-06 data could not be used to come up with a START load for the 270 since tha case is the same. I may have to buy a slower commercial powder to get the best results for the 270 huh?
Jeff