The B&P F2 Classic 1 1/16 are 67mm but are NOT low pressure at 1280 fps and 9,867 psi.
I just measured the chamber of a buddy's 16g very early Utica gun which was indeed 2 and 1/2". This thread discusses chamber length of classic American SxSs http://www.16ga.com/forum/viewtopic.php?t=1983
I would suggest giving the gun a good check and clean by a doublegun specialist smith and also examining the head of the stock for cracks. No reason not to lengthen the chamber which might decrease recoil a bit-good for you and your 80 year old wood. If you get the OK-the Sterly should handle those loads fine on a limited basis and they are indeed great pheasant whackers.
BTW: I limit my 16g LCs to 8000 psi and there are LOTS of options now for low pressure 16g loads
Polywad 'Vintager' http://www.polywad-shotgun-shells.com
Eley subsonic/low recoil http://eleyshotshells.com
ARMUSA 'Vintage' http://www.armusa-performance.com
Kent http://www.firearmservice.com
RST http://www.rstshells.com 570-553-1651

Last edited by revdocdrew; 12/20/06 01:21 PM.
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