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MMACFIVE

Fun With Sectional Density

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"Definitely Hi-Jacked now"....N.S. But it was dead before it ever started.

 

I'm kinda new here. Do all bad posts lead to the same place over time (sex, bowel movements, gun control, etc)?

 

And I'm not quite sure how having sex twice and 2 kids is lucky...seems very unlucky to me.

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"Definitely Hi-Jacked now"....N.S. But it was dead before it ever started.

 

I'm kinda new here. Do all bad posts lead to the same place over time (sex, bowel movements, gun control, etc)?

 

And I'm not quite sure how having sex twice and 2 kids is lucky...seems very unlucky to me.

bad posts lead to "Expired" one guy on here does it himself. Not sayin yours is bad.

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MMACFIVE, you should be able to answer the question you posed to start this thread, but you need a chronograph and at least a piezo electric pressure gauge system, seven test barrels and an action that you can switch barrel easily in, and load bullets of similar SD in different calibers to the same peak pressure. Each barrel should be the same length, have the same twist, made by the same manufacturer and all should have the same contour. Each barrel will cost around $500 or so each, so for the series you presented you need $3500 in barrels alone. An Oehler 35 chrono is around $400, Savage long action $350 +-, barrel nut wrench $50, piezo pressure system $10,000 (wild guess), and another $2000 or so for dies, powder brass primers, bullets. You will not need targets, staples or a staple gun though since only the velocity as a function of pressure and SD is the issue. Total cost thus far about $16,300. If you do the experiment, let us know the results, and I would be curious to see how close I came to estimating the cost.

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