I'm afraid there might be as many different requests as there are numbers at the hundreths place.
I for one would like to buy a few (up to three) around the 40mm area (1.568" dia. land x 1.618" dia. groove) by 45" to 55" long (capable of lining anything up to a 3/4 scale CW piece).
I have found the 40's very accurate and can still use lead projo's without too much weight and at the same time give a close to full scale response at a fraction of the cost. Besides there is a fellow from Nebraska with a 40 in a 2/3 scale 1861 Parrot that usually shows to our annual meet and is always near, if not at, the top of the competition... and that's at 800 yards.
What is his max. stroke or bed his length?
GOW