This has me confused as I am not a gunsmith...I have a Grant side lever which had new barrels made by Boss in 1904... Here is what the ledger says about the new barrels....that they have been made for 2 3/4 chambered " American " casings. But this is 1904.... Also for 6 loads.....the proof marks on the new barrel do not show 2 3/4.... I have been on occasion shooting factory target loads at the skeet range of 2 3/4..... Am I walking the line here because of the dates.?..


Boss ledger:






Last edited by Condor; 08/06/13 06:20 PM.