Not sure one can really say that....
The degree of rifling pretty much doesn't change the price, especially if you use a slower twist. Wear and tear on the cutters and the time needed would increase with milling a faster twist, not a slower one, an drive up costs.
The British had settled on a 1/4 turn as a minimum for bullet stability in a military rifle and with a 30" barrel that would give one a 1:120 twist rate. The idea was enough stability while allowing for quick reloads and maximum shots between swabbings. Their standard though was hitting a target 2' x 6' out to 300 yards. Fine for combat but not good for hunting, so Colerain produces a Baker barrel at 1:66 twist.
Pedersoli produced the Jaeger with a 1:24 twist. The Mortimer is a 1:65. The '61 Springfield is 1:72. Enfields come in 1:48 or 1:78. Their '63 Sharps is in 1:18
(I wonder if this is a typo ?) So they will likely produce something in the 1:60 - 1:70 range to compete with the Colerain product. On the other hand I could see them producing it in smoothbore IF they decide their largest market is Europe, as many European nations look down on anything that is rifled, but shotguns are tolerated. IF they do that, then the smart thing would be to have a good thickness in the barrel walls so that those that can do so, will be able to have them after-market rifled.
Only time will tell.
LD