Have to admit that I have had a harder than usual time working up a load for my new Kimber 280AI. Started seeing results with a 160 grain Accubond and Reloader 17. Once I got a baseline load I started tuning for seating depth.
On my Kimber the blind magazine is long enough to reach the lands, but cartridges reloaded that long will not eject without being fired as the tip hangs on the action and jams. This is not an acceptable condition for me, even with the best accuracy, I want to be always able to eject a bad round.
So most bullets in my experience will have a node of accuracy at .40, .80. or .120 when seating near the lands is not a option.
So after I found my powder charge I loaded 3 sets at .040 off the lands, .080 off and .120 off. I did not load a set touching the lands because I would not use them even if one hole accurate.
.040 off the lands is the point in which this rifle will eject an unfired round and was my starting COAL, as can be seen in this photo, .120 off proved to be the best option for this rifle and will be the new load.
So how do you folks find that seating sweet spot??