Here are some ferals my brothers and I have shot in the last few years in the States. Some look European, but I would think they woud be considered feral because they are descended from captive bred European boar that have been released in many places throughout the south to "enrich" the local game. A practice that is illegal and has led to the problem we have with feral hogs in the U.S. Two are from southern Missouri froma a few years ago, where there is a year round open season on feral hogs. The other two are from Tennessee. Hunting was spot and stalk for the most part, the big spotty one was pursued with dogs. Rifles used were Marlin 336 in .30-30, Ruger Hawkeye in .375 ruger, H&R handirifle in .45-70 and Savage 110 in .270 win.
As you can see we probably don't hunt with quite the same class as European hunters and those from the UK, but it is always a good time to share with friends and family.