wc867 powder in 264 wm and 338-378

[dgr416]

I am working up loads with wc867 powder in my 264 wm and 338-378 and maybe my 338 wm .I think it says to use h-870 data or h1000 data .Anyone else use this powder .I am using 140 gr and 155 gr in the 264 and 250 ,275 and 300 in the 338-378 and 250 gr in the 338 win mag.I am trying to use it in my dillion 550 reloader this powder is uncoated and meters different than coated powders !help needed !

 

[Trnelson]

I use WC867 in 264 mag and a couple other rifles as well. Start about 71.0g and work up with 140g bullets. You'll need to test at various temperatures. It isn't temperature stable. It does really well in my 264, just know the data. Develop your load in as warm weather as possible to prevent having a load that's safe at 40 and a bolt sticker at 80. A quality chronograph and a weather station are crucial if you plan to use this powder reliably. Have fun, be safe.

 

[dgr416]

Its also not coated and may not work in my zillion powder measure .It throws two different charges
Every other time .Its supose to be like h870 but does not work in my.powder measure good .I will probalky have to work up loads like you said and test it in hot and Cold weather .I used h870 in my 264 up till now .I hope wc867 works good in my 338-378 I have heard its awesome with 250-300 grain bullets in it .

 

[TJAY]

Not with 140's but my data with 867, 872 and mag pro



posted 08 April 2015 02:27
Shot today in a 264 Winchester 24" barrel. Mag Pro was also shot. All with 129 gr IB Rem case 215 primer.

Mag Pro 69 gr. 3020 FPS

872 69 gr. 2639 FPS

867 69 gr 2883 FPS

872 77gr. 3022 FPS

867 77gr. 3278 FPS

Previous shot R-33 129 IB rem & fed

72 gr. 2839 FPS

77 gr. 3094 FPS

 

[dgr416]

I will try it hope it works I got a bunch of if .The loads I saw for 338-378 were 123 grains with 250 gr keg wont last long .