Re: Bolt lug lapping
My take on it would be to get 'Accurizing the Factory Rifle' by McPherson and follow his advice and directions. You should use a bolt lapping tool (keeps bolt square to action--Brownells will have this and the lapping compound) and remove the barrel to do the job right or you may be wasting your time. Since the barrel is removed to lap the bolt lugs properly, when you reinstall the barrel you can now lap the barrel to receiver joint making that joint more stable and also decreasing the headspace that was increased by lapping the bolt lugs. Don't go cheap on this. Do it right the first time. Get the book and the proper tools. I do think it made a difference in my 300RUM 700. Along with proper bedding, good light trigger, right load, it'll likely drive tacks more consistently.
Just remember to be more careful than ever after bolt lapping to lube the lugs properly and often. Apparently, I've read, bolt lugs are more prone to galling once they've been lapped--go figure.
Getting that many bolt lugs properly lapped would be very difficult and I think it's one of the reasons some folks shy away from that action. Many of them shoot very well, however--no ultimate truth here... I'd question a reputable gunsmith about it. Might put a post up asking FiftyDriver or Chris Matthews with your quesiton in Bullets, Barrels and Ballistics. Just my take...
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