Quote:
I believe the 20 gauge NS originally came with short chambers. I have #163xxx (1924) and #191xxx (1925) and both had 2 1/2" chambers.


Thanks for the information. I've never had a chance to run a chamber gauge in an early 20-gauge Nitro Special.

I have never seen any information to indicate Ithaca Gun Co. ever held chambers 1/8 inch shorter than the intended cartridge like A.H. Fox Gun Co. and Parker Bros. did.