I discovered this site looking for something else.
http://rifleman.org.uk/Fuller_group_diagnosis.htm
It is loaded with a large amount of historical data. I was looking shot group analysis and that is the page in the link. I found that the British have smallbore calibers that I have never heard of and an assortment of .22LR conversions for military rifles. I am still reading the site and am learning something new to me very day.
http://rifleman.org.uk/Fuller_group_diagnosis.htm
It is loaded with a large amount of historical data. I was looking shot group analysis and that is the page in the link. I found that the British have smallbore calibers that I have never heard of and an assortment of .22LR conversions for military rifles. I am still reading the site and am learning something new to me very day.