Attached photograph shows some bullets that were made by small businesses that I can no longer find. Appears either the patents and/or the businesses were sold to larger companies. Some of the features were exclusive at the time (20+ years ago) but are now commonplace. the bullets are all .375, from 235 to 250 grain. the makers were Blue Mountain, HT, Jensen, and Elkhorn. If anyone knows the status of these companies I appreciate a reply.