264wm and 156 berger

[fisherman983]

Loaded out at 3.477 OAL on mine. 68.2G of N570 producing 3096 average w/ the 156. Grouping under a dime at 200. ES is under 5 with 8 twist Bartlien at 26". No brake. 0.165 throat. Maybe I got lucky but love that load.

you have a lot more freebore than me. im touching lands at 2.700. not sure what my smith used but I'd wished it had a little more.

 

[cb4128]

I know this thread is over a month old, but wanted to update it with my results.

I have a custom chamber that allows for a COAL of 3.480" with the 156gr bullets. I did a pressure test (never hit pressure signs, stopped at 71.0gr), found flat spots in velocity at 3,065fps and 3,137 fps and settled on the following load:

New Nosler brass
Federal 215m primer
70.3 gr VV N570
156gr berger elite
20 thousands off the lands or 3.460" COAL / 2.765" to ogive
3,137 fps avg

*pictured is my 3 shot group at 100 yards with this load - front bipod, rear bag, includes cold bore shot

Can't wait to stretch it out to confirm drops and try out the terminal performance on some animals in the coming weeks.

 

[MagnumManiac]

My 264WM is a 29" 1-8" twist with .220" freebore, with a mag box length of 3.710" I have ample room to seat any of the Berger/ABLR bullets with the heal just below the neck.
RETUMBO has been my go-to powder, but RE25 & H1000 also get it done.

Cheers.

 

[Double Dropper]

****, just bought a rifle in 257 Weatherby.....now wishing I found one in 264 Winny.