Mulligan
Silver $$ Contributor
This round-robin neck tension test was shot yesterday afternoon at 600 yards in Western Colorado, mid 30’s, cloudy, for us- light winds.

I plan to go out and retest to verify
But thought I would share this one because you can clearly see how the point of impact changed with small changes in neck tension.
This was shot round-robin……… a 12 shot string.
Each bullet hole has the shot number written beside it.
For example the the yellow group is the three shots where I used a forester die with a 260 honed neck and inserted a .238” mandrel into the case neck, the shots were the 2nd, 6th, and 10th shots in the series of 12 shot fairly fast.
CW

I plan to go out and retest to verify
But thought I would share this one because you can clearly see how the point of impact changed with small changes in neck tension.
This was shot round-robin……… a 12 shot string.
Each bullet hole has the shot number written beside it.
For example the the yellow group is the three shots where I used a forester die with a 260 honed neck and inserted a .238” mandrel into the case neck, the shots were the 2nd, 6th, and 10th shots in the series of 12 shot fairly fast.
CW