Sumo Sight ICFRA plots sheets and other downloads.
Here are some ICFRA plot sheets that I made. They work well for me, hopefully they are some use to you. Understand that there is a fair amount of inaccuracy on any short range target if you are not exactly at the designed distance.
300y ICFRA Plot Sheet
400y ICFRA Plot Sheet
500y ICFRA Plot Sheet
600y ICFRA Plot Sheet
700y ICFRA Plot Sheet
800y ICFRA Plot Sheet
900y ICFRA Plot Sheet
1000y ICFRA Plot Sheet
Here is my 308, 155gr fullbore zero range target. Fairly accurate elevation based on a Sumo 30mm fixed height sight.
Fullbore Zero Range target (25m)
This is the Excel spreadsheet I use to determine recommended fullbore ring sizes on ICFRA targets. It also seems very accurate for me. Adjust as needed. Send me comments on it's accuracy please.
Ryan's Fullbore ring size calculation spreadsheet v2.0 now updated to include metric ranges.