Here are some links for the 577/450.
http://www.lrml.org/technical/ammunition/patching.htm
http://christchurchgunclub.org/html/cgc_art_mh2.htm
http://www.martinihenry.com/
http://www.lrml.org/technical/ammunition/patching.htm
http://christchurchgunclub.org/html/cgc_art_mh2.htm
http://www.martinihenry.com/


















































