I realize that this may be a solution for a problem that doesn’t exist but I thought I would post in case it helps someone.
I was in search of a sub-sonic 7mm-08 load and couldn’t find what I needed. I used the Hodgdon data base that gave great info for 308 and 243. I have personally used the data for the 308 and have had great success with Hodgdon tight group and 168gn Sierra GMHP.
I tested 6, 6.5 and 7 gns in my Tikka 7-08 w/ a 16” barrel and observed the following:
7mm-08 (Fed Brass)
Ginex LR primer
Speer 145 Grand Slam
6.0 grains Tight Group (Average 800fps)
1. 857 fps
2. 802 fps
3. 741 fps
6.5 grains Tight Group (Average 886)
1. 850 fps
2. 886 fps
3. 921 fps
7.0 grains Tight Group (1047 fps)
1. 1070 fps
2. 1038 fps
3. 1034 fps
The ES and SD came down significantly on the highest load to 35 fps and 19.4 respectively. I have not been shooting for groups yet but all seem adequate. I realize that this a small sample size.
The rifle is capable of sub-MOA groups with super loads in CFE223 and Barnes 120gn TTSX for mid-Atlantic Whitetails….
Hope it helps someone if they are looking for a sub-sonic 7-08 load in a bolt action rifle.
I was in search of a sub-sonic 7mm-08 load and couldn’t find what I needed. I used the Hodgdon data base that gave great info for 308 and 243. I have personally used the data for the 308 and have had great success with Hodgdon tight group and 168gn Sierra GMHP.
I tested 6, 6.5 and 7 gns in my Tikka 7-08 w/ a 16” barrel and observed the following:
7mm-08 (Fed Brass)
Ginex LR primer
Speer 145 Grand Slam
6.0 grains Tight Group (Average 800fps)
1. 857 fps
2. 802 fps
3. 741 fps
6.5 grains Tight Group (Average 886)
1. 850 fps
2. 886 fps
3. 921 fps
7.0 grains Tight Group (1047 fps)
1. 1070 fps
2. 1038 fps
3. 1034 fps
The ES and SD came down significantly on the highest load to 35 fps and 19.4 respectively. I have not been shooting for groups yet but all seem adequate. I realize that this a small sample size.
The rifle is capable of sub-MOA groups with super loads in CFE223 and Barnes 120gn TTSX for mid-Atlantic Whitetails….
Hope it helps someone if they are looking for a sub-sonic 7-08 load in a bolt action rifle.