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I have chrono'd it will .25's and I get around 290. Currently when I grease/clean my rifle I use teflon and silicon grease and I make sure that my bolt carrier is adequately lubed, that the surface between the bolt and bolt carrier is well lubed, I have neglected slightly by not really going into it with cleaning but instead just lubing it slightly. Would a tight bore get me up to atleast 310?
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