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Rifles, Reloading, Optics, Equipment
Reloading
I need some help from the reloading gurus.
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<blockquote data-quote="nksmfamjp" data-source="post: 2786856" data-attributes="member: 1951"><p>Does that help you? I find it tells me more about case length, chamfers and burrs over capacity which is what question I'm wondering about.</p><p></p><p></p><p></p><p>That can work, but I'd suggest adjusting your focus to a LabRadar. Hanging a chrony of the tip of your barrel will give you different groups….bigger, smaller, moved, other. It would be a challenge to do anything meaningful with that.</p><p></p><p></p><p>Generality Lapua brass is fine. My guess is you are struggling to find the node again. Also, you shot a good group of 3 last time. Failure to recreate is likely mostly a matter of sample size. </p><p></p><p>If you ran into pressure, try dropping about 1 gr from any pressure sign at all. Then shoot 7 groups of 3 shots. Did one repeat? If so, the previous group is likely just related to sample size.</p><p></p><p></p><p>Based on??? Often that is right, but…really you need to take spring out of your bolt and see the longest CBTD that the bolt drops. That is max CBTD.</p><p></p><p></p><p>Bingo. Weighed water capacity is the only way to compare.</p></blockquote><p></p>
[QUOTE="nksmfamjp, post: 2786856, member: 1951"] Does that help you? I find it tells me more about case length, chamfers and burrs over capacity which is what question I’m wondering about. That can work, but I’d suggest adjusting your focus to a LabRadar. Hanging a chrony of the tip of your barrel will give you different groups….bigger, smaller, moved, other. It would be a challenge to do anything meaningful with that. Generality Lapua brass is fine. My guess is you are struggling to find the node again. Also, you shot a good group of 3 last time. Failure to recreate is likely mostly a matter of sample size. If you ran into pressure, try dropping about 1 gr from any pressure sign at all. Then shoot 7 groups of 3 shots. Did one repeat? If so, the previous group is likely just related to sample size. Based on??? Often that is right, but…really you need to take spring out of your bolt and see the longest CBTD that the bolt drops. That is max CBTD. Bingo. Weighed water capacity is the only way to compare. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
I need some help from the reloading gurus.
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