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Rifles, Reloading, Optics, Equipment
Reloading
Quickload help 7mm-08
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<blockquote data-quote="ClaynTexas" data-source="post: 1105142" data-attributes="member: 90987"><p>It is under the gas block in front of the handguard. There are 2 set screws on the bottom of the gas block. If you loosen them, it will slide off the barrel. The gas block and gas tube will be removed and installed as one piece. The gas port is a hole on the top of the barrel. Should you decide to alter it, be careful of a few things. </p><p></p><p>First, don't over penetrate and mar the inside bore opposite the gas port. </p><p></p><p>Second, use very light pressure and a medium to high drill speed so you don't create large burrs at the port inside the bore. Clean it good and remove any burrs left behind.</p><p></p><p>Third, step up the hole in the smallest increment possible for it to function correctly. I'm betting that the port is about 0.084" now. Try a #44 (0.089") first. If it's still not quite right, step to #43 (0.0935")</p><p></p><p>Fourth, the gas block will pretty much self align since the barrel is dimpled for the setscrews. Check for good alignment anyway and make sure the bolt carrier group doesn't get tangled with the gas tube when reassembled. It should slide back and forth with no interference at the gas tube. When you are satisfied with it, use blue loctite on the setscrews to keep them from backing out. Don't use red loctite, it can be a bear to get loose again if it takes a good set.</p><p></p><p>Fifth (probably should be first), don't do it unless you're confident in yourself regarding the drilling. Any gunsmith can increase the port size if you aren't confident.</p><p></p><p>If you go too far, it will cycle hard and fast. If you go way too far, it will show on the case rims and heads. If you do go too far, an adjustable gas block will cure that so it's not the end of the world.</p></blockquote><p></p>
[QUOTE="ClaynTexas, post: 1105142, member: 90987"] It is under the gas block in front of the handguard. There are 2 set screws on the bottom of the gas block. If you loosen them, it will slide off the barrel. The gas block and gas tube will be removed and installed as one piece. The gas port is a hole on the top of the barrel. Should you decide to alter it, be careful of a few things. First, don't over penetrate and mar the inside bore opposite the gas port. Second, use very light pressure and a medium to high drill speed so you don't create large burrs at the port inside the bore. Clean it good and remove any burrs left behind. Third, step up the hole in the smallest increment possible for it to function correctly. I'm betting that the port is about 0.084" now. Try a #44 (0.089") first. If it's still not quite right, step to #43 (0.0935") Fourth, the gas block will pretty much self align since the barrel is dimpled for the setscrews. Check for good alignment anyway and make sure the bolt carrier group doesn't get tangled with the gas tube when reassembled. It should slide back and forth with no interference at the gas tube. When you are satisfied with it, use blue loctite on the setscrews to keep them from backing out. Don't use red loctite, it can be a bear to get loose again if it takes a good set. Fifth (probably should be first), don't do it unless you're confident in yourself regarding the drilling. Any gunsmith can increase the port size if you aren't confident. If you go too far, it will cycle hard and fast. If you go way too far, it will show on the case rims and heads. If you do go too far, an adjustable gas block will cure that so it's not the end of the world. [/QUOTE]
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Quickload help 7mm-08
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