My anachronistic guns: 30 cal.

This is my list of guns for use in anachronistic designs. The guns are all of 30 cal length. The projecting length is the length of the piece that projects from the turret or shield. The guns range from a 68pdr up to a 17in, 98-ton gun:

 Dia.       Shot    Length:   Wt of piece   Length in ft   Projecting length

 5.15in    68pdr    30         2.73 tons    12ft-10in       7ft-8in
 5.85in   100pdr    30         4 tons       14ft-7in        8ft-9in
 6.6in    143 lbs   30         5.75 tons    16ft-6in        9ft-11in
 7in      171 lbs   30         6.86 tons    17ft-6in       10ft-6in
 7.5in    210 lbs   30         8.44 tons    18ft-9in       11ft-3in
 8in      256 lbs   30        10.24 tons    20ft           12ft
 9in      364 lbs   30        14.6 tons     22ft-6in       13ft-6in
 9.2in    389 lbs   30        15.6 tons     23ft           13ft-10in
10in      500 lbs   30        20 tons       25ft           15ft
11in      665 lbs   30        26.6 tons     27ft-6in       16ft-6in
12in      864 lbs   30        34.6 tons     30ft           18ft
12.5in    976 lbs   30        39 tons       31ft-3in       19ft-9in
13in     1098 lbs   30        44 tons       32ft-6in       19ft-6in
13.5in   1230 lbs   30        49 tons       33ft-9in       20ft-3in
14in     1372 lbs   30        55 tons       35ft           21ft
14.5in   1524 lbs   30        61 tons       36ft-3in       21ft-9in
15in     1687 lbs   30        67.5 tons     37ft-6in       22ft-6in
16in     2048 lbs   30        82 tons       40ft           24ft
16.25in  2145 lbs   30        86 tons       40ft-7in       24ft-4in
17in     2465 lbs   30        98 tons       42ft-6in       25ft-6in