Ive got my doubts.
Does anybody remember the time a guy asked if he could have his 2 English 12
gauge chambers let out to 2 3/4?
Not the same, but fun to ponder.
Best,
Ted
Why is this a silly question? In the UK the proof test has become very strict and therefor many older guns are rejected from proof due to being originally proofed for 2 1/2 inch cartridges only to find the chambers measure some random size somewhere between 2 and 2 1/2 inch. In my experience its quite common to find short or long chambered older guns, to pass a new proof one must have the chambers dropped to within the new tolerances for the new size ranges.
To the question can you have choke tubes put in - yes if there is enough wall thickness for the purpose, some old hammer guns i have seen would lack the required thickness at the muzzle.
It is a silly question, here, in the US. Off the shelf loads in this country are often loaded right up to SAAMI spec, which, means you would be firing a load at or above proof level in your English 2 chamber gun, that someone let out to 2 3/4, every, single, time you pulled the trigger. We have no proof house, and, perhaps more importantly, very few gunsmiths talented enough to perform a view before and after a proof session. I can think of one. He apprenticed at Hollands.
It has only been in recent years that lower pressure loads have been widely available in the US. You dont need a load that will reliably cycle a dirty gas autoloading gun in your 100 year old double, but, at most retailers, that is the ammunition you will get.
To the choke tube matter, most gunsmiths, here, arent interested in the liability of modifications to Damascus barrels. Your gunsmith in England is going to cut the barrels for tubes, taking it out of proof, and then, by law, submit it for reproof, where it will pass or fail. If the gun fails, here, after that work, the gunsmith will most likely hear from a lawyer.
The gunsmith here, has no control as to what loads go into the gun. Usually, neither does the owner, unless he is astute.
English 2 chamber guns typically run light in weight. I cant imagine why anyone would want to fire a 2 3/4 SAAMI spec load in one, or, want to lengthen a 2 guns chamber in order to be able to do so.
This isnt England. It would be silly to do either, here.
Best,
Ted
