I would make sure the bullet was NOT touching the lands, and would back the load off by at least .5-1 grains.
Might be the difference between standard and magnum primers as well.
Sticky bolt, means you are already well over-pressure in my safety world.
You should also check your bolt's extractor and firing pin for any physical damage.....
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Last edited by LaneNebraska; 08-15-2009 at 08:34 PM.