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Rifles, Reloading, Optics, Equipment
Reloading
First ladder test results
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<blockquote data-quote="QuietTexan" data-source="post: 2179896" data-attributes="member: 116181"><p>I think your options are:</p><ol> <li data-xf-list-type="ol">Accept the slower speed and try to tighten the group around #4 with seating depth</li> <li data-xf-list-type="ol">Push the pressure and find out where the real max is - you're using good brass so you risk wasting case life in shooting out the primer pockets, not sure if you care about that</li> <li data-xf-list-type="ol">Reshoot a seating depth first before the ladder - this is going to change where you see pressure signs depending on how close to the lands you put the bullet versus how much case capacity you gain seating further out.</li> <li data-xf-list-type="ol">Change to a different powder if you really need more speed. I can get 2780 out of Superperformance in a 22" barrel, and found a nice 'no pressure signs/hot weather' node at just over 2700.</li> </ol><p>You had said you didn't have your measuring tools yet back when you were working up the Win 760/140 BTHP load - do you have them now? I'm seeing a need for seating depth adjustments, with makes me lean towards saying shoot seating depths tests to use up the rest of the new brass, then reshoot the ladder. The difference between your velocity and vertical grouping charts would probably push me to moving to another powder to see if I could square up the best vertical group with a flater spot on the velocity chart, but I get that you can't just run buy a pound of a half dozen powders and 500 same-lot bullets currently.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2179896, member: 116181"] I think your options are: [LIST=1] [*]Accept the slower speed and try to tighten the group around #4 with seating depth [*]Push the pressure and find out where the real max is - you're using good brass so you risk wasting case life in shooting out the primer pockets, not sure if you care about that [*]Reshoot a seating depth first before the ladder - this is going to change where you see pressure signs depending on how close to the lands you put the bullet versus how much case capacity you gain seating further out. [*]Change to a different powder if you really need more speed. I can get 2780 out of Superperformance in a 22" barrel, and found a nice 'no pressure signs/hot weather' node at just over 2700. [/LIST] You had said you didn't have your measuring tools yet back when you were working up the Win 760/140 BTHP load - do you have them now? I'm seeing a need for seating depth adjustments, with makes me lean towards saying shoot seating depths tests to use up the rest of the new brass, then reshoot the ladder. The difference between your velocity and vertical grouping charts would probably push me to moving to another powder to see if I could square up the best vertical group with a flater spot on the velocity chart, but I get that you can't just run buy a pound of a half dozen powders and 500 same-lot bullets currently. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
First ladder test results
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