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Rifles, Reloading, Optics, Equipment
Gunsmithing
Tight chambered 300 RUM fix needed
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<blockquote data-quote="Rustystud" data-source="post: 627799" data-attributes="member: 9964"><p>Thoroughly inspect the chamber, counter bore, tenon, bolt lugs, front and face for trash ie: brass, unburned powder etc. Check it with a SAAMI go gauge. If the bolt closes on the Go Gauge you have rulled out headspace issues. Then take a felt tip marker and mark up the outside of a case completely and let it dry. Then carefully insert it into the chamber and attempt to close the bolt. Then remove the case carefully. Look for places on the case where the marker has been rubbed off.</p><p>This test may identify a tight spot. Most chambers require a little polishing but it must be done in a lathe otherwise you risk damaging the chamber.</p><p>Good Luck</p><p>Nat Lambeth</p></blockquote><p></p>
[QUOTE="Rustystud, post: 627799, member: 9964"] Thoroughly inspect the chamber, counter bore, tenon, bolt lugs, front and face for trash ie: brass, unburned powder etc. Check it with a SAAMI go gauge. If the bolt closes on the Go Gauge you have rulled out headspace issues. Then take a felt tip marker and mark up the outside of a case completely and let it dry. Then carefully insert it into the chamber and attempt to close the bolt. Then remove the case carefully. Look for places on the case where the marker has been rubbed off. This test may identify a tight spot. Most chambers require a little polishing but it must be done in a lathe otherwise you risk damaging the chamber. Good Luck Nat Lambeth [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Tight chambered 300 RUM fix needed
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