Its crudely manufactured and not deburred. Pull the bolt and check its lugs and the bolt raceways over thoroughly for burrs along the edges. Also check the lug recesses for burrs as well.
Could be they machined the bore of the reciever a tad undersized, or the bolt body a tad over, Either would be a good thing as all youd need to do is lap it til its smooth. And avid custom rifle shooters pay alot of good money to have a gunsmith tighten the fit between the bolt and reciever of a rifle action as part of the blueprinting process. But i doubt this is the case here..
Could be they machined the bore of the reciever a tad undersized, or the bolt body a tad over, Either would be a good thing as all youd need to do is lap it til its smooth. And avid custom rifle shooters pay alot of good money to have a gunsmith tighten the fit between the bolt and reciever of a rifle action as part of the blueprinting process. But i doubt this is the case here..
