Hello everyone. I have an M1917 Winchester with an original 1918 barrel and I can group it 1.8 inches at 100yds and I can hit steel out to 550yds (limit of my range). What i can't do is group it worth a damn at 200yds or more. What are your thoughts on why? Is the rear aperture so large that it makes it super difficult? I have read plenty of threads on several forums the M1917 is terrible for target work but I find it hard to believe decent grouping deteriorates at 200+. Every accomplished rifleman I have met or communicated with all say the same thing - if the rifle performs consistently at 100 then that performance extends to the designated distance. Any thoughts are appreciated.