Please see this thread re: chamber length
http://www.16ga.com/forum/viewtopic.php?t=1983And you have lots of options for short/low pressure loads:
Polywad 'Vintager'
http://www.polywad-shotgun-shells.com 800-998-0669
Eley
http://eleyshotshells.com 512-821-9953 or
http://www.kirklees-guns.co.uk/Eley%20Hawk/Eley%20Hunting.htmARMUSA 'Vintage'
http://www.armusa-performance.com 281-381-7773
Kent
http://www.firearmservice.com 512-821-9953
RST
http://www.rstshells.com 570-553-1651
B&P offers mostly 67mm hunting and target loads designed for 65mm guns
http://www.bandpusa.com/ 800-683-0464
WestleyRichards
http://www.westleyrichards.com/gun/ammo_shot.phpAnd a light 16 is delightful with 7/8 oz or even 3/4 oz handloads-you might consider joining the 16g Low pressure reloading group
http://www.16ga.com/forum/viewtopic.php?t=921BTW: it's likely to be choked full and more full-no reason not to open the chokes and make the gun right for you. In TX-Briley or Merrington would do a good job for you
Kirk Merrington in Kerrville, TX
http://kirkmerrington.net/But no one has a shorter turn around time than Orlen
Michael R. Orlen
79 Salem Street
Amherst, MA 01002
(413) 256-1630
michael.orlen@verizon.net
http://members.aol.com/sgunbore/brochure.gif