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The Range
Ammo & Reloading
Powder coat, gas check, or both
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<blockquote data-quote="TheDoubleD" data-source="post: 3529437" data-attributes="member: 43754"><p>The purpose of a gas check was to, well "check gas." A gas check covers the bottom the bullet to keep hot powder gas from melting the bottom the bullet and keeps the molten lead from being spun out during firing and splattering the bore-leading it. One type of leading.</p><p></p><p>It may also work as a driving band at lower velocities. At higher velocities the lead portion of the bullet may still strip and lead the bore. When this occurs accuracies declines. Back in day the discussion was at higher velocities was accuracy lost due the lead stripping alone and gas check spinning or was the gas check working a scrapper and pushing up lead in front of the gas check. </p><p></p><p>The consensus also back then was lead bullets were not a good idea in a gas gun. Lead would quickly plug a gas port on the Garand. Harder to clean out than carbon. Some where in my tool box is a Garand gas port reamer, made just for this job. Cleaning the piston was fairly easy, cleaning the cylinder, not so easy.</p><p></p><p>I would "guess" and guess only, no experience, it might not be a bad idea to have a spare gas tube for your guns so equipped if shooting lead.</p></blockquote><p></p>
[QUOTE="TheDoubleD, post: 3529437, member: 43754"] The purpose of a gas check was to, well "check gas." A gas check covers the bottom the bullet to keep hot powder gas from melting the bottom the bullet and keeps the molten lead from being spun out during firing and splattering the bore-leading it. One type of leading. It may also work as a driving band at lower velocities. At higher velocities the lead portion of the bullet may still strip and lead the bore. When this occurs accuracies declines. Back in day the discussion was at higher velocities was accuracy lost due the lead stripping alone and gas check spinning or was the gas check working a scrapper and pushing up lead in front of the gas check. The consensus also back then was lead bullets were not a good idea in a gas gun. Lead would quickly plug a gas port on the Garand. Harder to clean out than carbon. Some where in my tool box is a Garand gas port reamer, made just for this job. Cleaning the piston was fairly easy, cleaning the cylinder, not so easy. I would "guess" and guess only, no experience, it might not be a bad idea to have a spare gas tube for your guns so equipped if shooting lead. [/QUOTE]
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