Military rifles were dirt cheap beginning around the turn of the century. The average guy could not hope to afford a new Winchester, Remington or Savage hunting rifle. Hundreds of thousands of young Canadians and Americans had been exposed to bolt action rifles in WW1 and WW2(many for the first time). The typical bolt action military rifle from the 1880's on was very long for hunting and weighed nine pounds and up, not really the optimum choice for a hunting rifle. So a cottage industry sprang up turning military bolt actions into inexpensive hunting rifles. Barrels were shortened, full wood stocks cut down etc. In general manufacturing poor man's hunting rifles. Purists today lament those pieces of history being "butchered" but at the time military rifles were very cheap and plentiful but not very handy for hunting. Sporterized military rifles run the gamut from simply chopped off barrels to truly high grade creations worth of a great deal of money.