Because of reverence for age and length of building side by sides to the exclusion of vitually everything else, the English build the best. Plus the English gun has been tested in Africa, India and similar continents against the most dangerous animals and they have been tested in the most rugged conditions. Purdey, Boss, Atkin,Grant & Lang, Webley & Scott, Rigby, they have the history tracing their roots back to the 17th century. But good lord are they expensive!!!
All the best