00:00the glory of small answer
00:06is a topic
00:08which we call a barrel line or
00:11axis of bore
00:13which is the bridge block
00:18which is the bore
00:19which is the bridge block
00:29of elevation
00:30the
00:37line of elevation
00:38which
00:38is
00:39the
00:40line of elevation
00:41means
00:42that
00:43if
00:44the line
00:45is
00:46axis
00:46of
00:46board
00:47and
00:49this
00:50line
00:51elevation
00:52the
00:59line
00:59and
01:00two
01:00lines
01:01of
01:02caliber
01:02so
01:07you can
01:07understand
01:08axis
01:08of
01:09board
01:09or
01:10barrel
01:10line
01:13Namaskar
01:14Jaihin
01:15Thayn
01:16Thayn
01:16Thayn
01:16Thayn
01:16Thayn
01:16Thayn
01:19Thayn
01:19Thayn
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