Hi,
The weight differences between walnut, cherry, and maple would not be noticeable if the gunstock is properly made. Teak is very heavy and on top of that, the India-made gun probably has way too much wood left on it. The fore stocks of fowling guns were almost egg shell thin. Also, I suspect the barrel is also heavier than any originals. Is this the "Cookson" fowler? If it is, and I am familiar with that gun, just about 2 original New England folwers could be made from the heavy materials used on the India-made version. The original gun by Cookson was stocked in cherry.
dave