Just to elaborate on how the 18 1/2 inch barrel made the Mohawk unpopular when they came out in the 60s. This was late in the period often referred to as the glory years of shooting and hunting, with a goodly number of shooting editors in US glossy magazines, all having an influence on shooters of the day. But one shooting editor, Jack O'Connor, had more influence on the shooting fraternity than all the other gun editors put together. Jack did not like short barrelled rifles and used to write that a rifle in the 308/30-06 class should have a barrel no shorter than 22 inches, while a magnum should have either 24 or 26 inch barrels.
O'Connor pushed Winchester and I don't think any of their high powered bolt action rifles had barrels shorter than 22 inches.
Remington brought out the first Model 700 rifles with 20 inch barrels, in the same age era as the Mohawk, and they too, went over like a lead balloon, until they increased the barrel length.