which powder burns little slower then red dot but able to get low ES

[bigrich954rr]

I am looking for a powder that burns a little slower then red dot but still takes up a good amount of space like the red dot. Ive tried H4227 but doesnt fill the case enough in my mind. Its for a 338 whisper rifle 7mm BR case necked up to shoot a 338cal 300 Mk bullet. will all types of powder get a low ES or some are just better then other. which to look for in this burn rate?

 

[biff's reloading]

Re: which powder burns little slower then red dot but able to get low

tried green dot? its not much slower than red dot.

 

[jwp475]

Re: which powder burns little slower then red dot but able to get low

Is H-110 or Winchester 296 worth a try? You may want to call JD Jones at SSK and ask for data as he is the originator of the Whisper concept.

 

[bigrich954rr]

Re: which powder burns little slower then red dot but able to get low

Called ssk but they wont give out any info.because they didnt build it. I was thinking blue dot. but how is the flake powder over all for ES. Trying to find a powder that takes up the same amount of space. i was using H4227 but it barely fills the case up. trying to not use any fillers.

 

[jwp475]

Re: which powder burns little slower then red dot but able to get low

A burn rate chart from Hogdons web site:

A partial list:

35. Alliant Blue Dot
36. Accurate Arms No. 7
37. Hodgdon LONGSHOT
38. Alliant 2400
39. Accurate Arms No. 9
40. NORMA R123
41. Vihtavuori N110
42. Hodgdon LIL'GUN
43. Hodgdon H110
44. Winchester 296
45. IMR, Co. IMR4227
46. Hodgdon H4227
47. IMR, Co SR4759
48. Accurate Arms 1680
49. NORMA 200
50. Alliant Reloder 7
51. IMR, Co IMR4198
52. Hodgdon H4198
53. Vihtavuori N120

Imr4198 may be a good choice.........