Quote:
Originally Posted by Ed Blake
So if I’m reading that table correctly, a 3 dreq load produces only 900 ft per second? Sounds like bulk smokeless was not very efficient. I think I’ll stick to my ClayDot.
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Period shotshell speeds were given in
average velocity over 40 yards. One factor often forgotten when quoting those speeds is the pellet size, as smaller diameter shot will bleed off speed more quickly than larger pellets, and hence different averages for the same drams or drams equivalent loading. Drew's second chart shows 7-shot but often such charts only show gauge, drams or DE, and weight of shot.
Thanks Drew for noting the math conversion, i.e., tons x 2240 = lead units of pressure. If I read again about Burrard's conversion being applied to period
American shotshell velocity as measured by lead crushers, I think I'll get into shivers and convulsions.
frank