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Rifles, Reloading, Optics, Equipment
Reloading
Possible Pressure Signs with factory Loaded Ammo?
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<blockquote data-quote="mhamlin" data-source="post: 1076912" data-attributes="member: 68822"><p>looking for some advice on pressure signs. I have a new Remington 700 Long-Range Bolt-Action in 300 RUM.</p><p></p><p>I shot some factory Remington Premier A-Frame 180 grain Power Level III ammo and </p><p>got a slight resistance when lifting the bolt and the brass on the case head flowed into the ejector port and left a perfect circle that you can catch a fingernail on...see picture...[ATTACH]47322[/ATTACH])</p><p></p><p>I was surprised by what I believe to be high pressure signs using the factory ammo, so I reloaded some once-fired brass that I purchased online and shot 10 rounds to see where I started getting pressure signs, starting with 79 grains of H1000, progressing up through 88 grains, pushing a Berger 215 hybrid at 3.60 COAL. All of the primers seemed somewhat flattened beginning at 79 grains and did not change much up to 88 grains, except I starting getting a cratered ridge around the impression made by the firing pin at 86 grains. I never felt any resistance when lifting the bolt and there were no smiley faces, or new marks from the bolt face.</p><p>I've included pictures of the fired reloads. the case on the left was 79 grains, middle was 85 grains and the right case was 88 grains. (marks on the case head were from previous loading</p><p></p><p>Is marks on the case head and a stiff bolt lift the key to finding max pressure? I read an earlier post that stated that looking at primers was not a good indicator when dealing with a factory quality bolt and action.</p><p></p><p>Any thoughts?[ATTACH]47323[/ATTACH][ATTACH]47324[/ATTACH]</p></blockquote><p></p>
[QUOTE="mhamlin, post: 1076912, member: 68822"] looking for some advice on pressure signs. I have a new Remington 700 Long-Range Bolt-Action in 300 RUM. I shot some factory Remington Premier A-Frame 180 grain Power Level III ammo and got a slight resistance when lifting the bolt and the brass on the case head flowed into the ejector port and left a perfect circle that you can catch a fingernail on...see picture...[ATTACH]47322.vB[/ATTACH]) I was surprised by what I believe to be high pressure signs using the factory ammo, so I reloaded some once-fired brass that I purchased online and shot 10 rounds to see where I started getting pressure signs, starting with 79 grains of H1000, progressing up through 88 grains, pushing a Berger 215 hybrid at 3.60 COAL. All of the primers seemed somewhat flattened beginning at 79 grains and did not change much up to 88 grains, except I starting getting a cratered ridge around the impression made by the firing pin at 86 grains. I never felt any resistance when lifting the bolt and there were no smiley faces, or new marks from the bolt face. I've included pictures of the fired reloads. the case on the left was 79 grains, middle was 85 grains and the right case was 88 grains. (marks on the case head were from previous loading Is marks on the case head and a stiff bolt lift the key to finding max pressure? I read an earlier post that stated that looking at primers was not a good indicator when dealing with a factory quality bolt and action. Any thoughts?[ATTACH]47323.vB[/ATTACH][ATTACH]47324.vB[/ATTACH] [/QUOTE]
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Possible Pressure Signs with factory Loaded Ammo?
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