Hi Mark, I'd like one too please. Carl
-----Original Message-----
From: Mark Branstner <[log in to unmask]>
To: [log in to unmask]
Sent: Sat, 12 Apr 2008 10:21 pm
Subject: Lead Ball Conversion Table
Hey Guys,?
?
Although I'd be very surprised to learn that I was the first person
to do this, here goes:?
?
Given the frequency of finding round lead ball and shot on historic
sites, and the fact that it has often been distorted in use, making
it difficult to accurately measure, I came up with an Excel table
that allows you to simply weigh the large shot or ball, and determine
gauge and/or caliber. Of course, this assumes the shot or ball was
originally round and is still essentially whole ...?
?
I created the conversion table to range from 1-200 Gauge or 1.671 -
0.28 caliber, which should cover most anything firearms-related (and
even small cannon :-) ). I realize that there were 2 and 4 gauge
market shotguns out there, but it would be unlikely for them to be
shooting solid full-bore projectiles. By the same token, anything
smaller than .28 caliber would almost certainly fall into the
buckshot or shotgun pellet range, where caliber measurement would be
largely unnecessary.?
?
Note that I have cross-referenced GAUGE, CALIBER, GRAIN WGT, GRAM
WEIGHT, and ROUNDED GRAM WEIGHT and ROUNDED CALIBER. This should
cross-correlate with historic sources, as well as modern literature,
and lab data.?
?
I have not added information about standard sizes of buckshot,
shotgun pellets, etc., as that data is pretty readily available on
the web (Wikipedia).?
?
If anybody wants a copy, please send me an e-mail and I will forward.?
?
Mark?
?
P.S. Again, if somebody has already done this in a easily accessible
format, just ignore.?
?
-- ?
Mark C. Branstner, RPA?
Historic Archaeologist?
?
Illinois Transportation?
Archaeological Research Program?
University of Illinois at Urbana-Champaign?
209 Nuclear Physics Lab, MC-571?
23 East Stadium Drive?
Champaign, IL 61820?
?
Phone: 217.244.0892?
Fax: 217.244.7458?
Cell: 517.927.4556?
[log in to unmask]
?
"I hope there's pudding" - Luna Lovegood (HP5)?
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