The NRA's American Rifleman has an article on the American long rifle and the men who used it during the Revolutionary War.
Not sure if y'all can reach it online, but here's a link....
http://contentviewer.adobe.com/s/NRA%20Magazines/4d211bf1db214a289d83c0f3cb08a1b1/R_0713_WEB/15_R1307D_F_LONGRIFLE.html
tk
Good read...very well written. Thank you Chris Kyle! Actually the articles in the magazine have been real good the past couple of issues O0