5.2mm Bore Excessive?

[ebnash]

I’ve been searching for a birth year Dunhill for about a year now. Rarely do I find any that catch my eye. I’m not going to buy just any 1975...

Any way, a friend mentioned he saw a 1975 bent bull dog at one of the European sites. It was stunning and the best I’d seen. I was actually in the process of checking out with it, when I noticed that the bore size is 5.2mm.
This must have been re-drilled at some time and seems quite excessive to me.

Am I looking too much into this factor?

 

[sasquatch]

You'll feel it, even though the entire pipe isn't bored at 5.2 (the stem is unlikely to have been opened in a matching fashion). I've had a couple pipes with huge bores like that, curve-drilled Ser Jacopos, and they smoked acceptably, I suppose, but I never liked them especially. If the price is right you could try it out, but .. if they want top dollar I myself would pass. No reason to own a Dunhill that .... isn't a Dunhill inside too.

 

[frozenchurchwarden]

If it's a 9mm filter Pipe I'd feel a lot better about it, if they're cutting a normal tenon to 5.2mm that can take things to the limits pretty easily (The tenon itself is often just 8mm).

 

[paulfg]

could it be an inner tube pipe missing the inner tube.
I dont know the diameter of them or when they stopped producing them if they have, and dont have one to measure

or even if bent pipes have them

 

[BROBS]

the pipe is bent? are they measuring the funnel opening on the tenon?
a Dunhill from that year should have a wide open funnel into the mortise.

 

[mso489]

I have a Ser Jacopo with a stock wide open bore that may be among my best smokers, but I'd agree a Dunhill that has been redrilled may not be the best bet. Unless maybe the price is irresistible.