Originally Posted by MudRunner2005
Mine was shooting great up against the lands, but I recently backed it off 0.030" to see if that helps my pressure issue.
You can try backing off the charge a hair and/or slower burning powder if backing off causes accuracy to drop off.
One thing I'm wondering is, is there a difference in how different mfg's and custom makers cut the angle on the transition from the freebore running up to the lans?
I'm postulating that if you have a longer/flatter slope on that run then you'll have less pressure problems than you would with a sharper/steeper transition.
I was also thinking that the longer transition would cause more accuracy issues if you back off vs the sharper angle.
Maybe some of the real gurus will chime in. This is pure theory on my part.