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Rifles, Reloading, Optics, Equipment
Reloading
Seating near lands and pressure
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<blockquote data-quote="The Oregonian" data-source="post: 1418572" data-attributes="member: 51405"><p>at what point does seating near the lands increase pressure?</p><p></p><p>I have two powder nodes I am testing with BT180's in a 30-06. I am going to test seating next...recipe that came with the gun is .085 off the lands. Going to test several depths down to maybe .020 off but want to be aware of any pressure spikes that this may cause.</p><p></p><p>The lower powder node has plenty of room above it with no pressure signs. The other node is slightly above book value (57.3 of H4350) but I have shot up to 58.5 as part of a test and only got very slight ejector marks and no other signs - sticky bolt, primers, etc.</p><p></p><p>I don't believe the BT's are very depth sensitive but I want to tighten up the groups if possible. I am about .75 MOA during powder tests.</p><p></p><p>Thx</p></blockquote><p></p>
[QUOTE="The Oregonian, post: 1418572, member: 51405"] at what point does seating near the lands increase pressure? I have two powder nodes I am testing with BT180’s in a 30-06. I am going to test seating next...recipe that came with the gun is .085 off the lands. Going to test several depths down to maybe .020 off but want to be aware of any pressure spikes that this may cause. The lower powder node has plenty of room above it with no pressure signs. The other node is slightly above book value (57.3 of H4350) but I have shot up to 58.5 as part of a test and only got very slight ejector marks and no other signs - sticky bolt, primers, etc. I don’t believe the BT’s are very depth sensitive but I want to tighten up the groups if possible. I am about .75 MOA during powder tests. Thx [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Seating near lands and pressure
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