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Message: <blockquote data-quote="diggler1833" data-source="post: 3855055" data-attributes="member: 48072">Double grouping is very frequently caused by two things (assuming it is not the shooter):  1.  It can be a rifle bedding issue if the recoil lug isn't making contact with the stock/bedding across its entire surface.  2.  It can also be a seating depth preference with your reloading in that you are just a few thousandths away from hitting that perfect depth node.I usually start with #2, and have found that by increasing or decreasing the cartridge OAL/CBTO .005 - .010, I can much more often than not tighten things up.Bullet seating depth has as much influence on accuracy as powder charge weights.One way to rule out a lot of possibility on it being shooter error is to fire your group without breaking contact with/re-addressing your rifle.  If you like to take a shot, then move off the rifle to record velocity etc... you are greatly increasing your chances of altering the recoil impulse and POI slightly for the next shot.</blockquote>