ML/BP cartridge May postal results

Chuck,   The match went well. Not so much in the results but in a lesson learned.   The year after I got the Sharps, maybe 2011, at the March gun show, an old friend who I shot many handgun silhouette matches with, stopped by the CBA table. We got to talking iron sights on our BPC rifles and he told me something about the front aperture. It was his opinion that many people use too small of an opening on the front aperture. He suggested dividing things into thirds. The area on each side of the target is 1/3 of the area seen through the aperture and the width of the target is the remaining third.   I got to thinking about this as I was driving home from the Saturday match. I think I have too small of an opening in the front aperture, for the Scheutzen target. My eyes try too hard to get everything concentric….rear sight, front sight and target bull. In doing that the rifle is being unconsciously moved ever so slightly.   The 200-yard iron sight Scheutzen red bull is 12” diameter. To test the theory, we need a 36” diameter circle at the 200-yard target location, look through the sights, exchanging the front aperture until the aperture opening and the 36” diameter test circle share the same outer edge.   My reasoning…..Three days before the match, I shot the turkey target @ 200-yards and 7 of the 10 rounds made a group of 4 ½”. When looking through the sights, the turkey is a fairly small image. The width of the turkey is 7". This 200-yard target size is meant to closely replicate what is seen through the sights when looking at an NRA steel turkey at 385-meters, reduced in size for use at 200-yards.   Looks like I have the right size aperture for the turkey but now I need to find the right size for the Scheutzen bull. I cannot expect to use the same aperture for both. The loads on both days were the same. The current front aperture is 0.106”. The largest one I have is 0.127”. The aperture set ranges between 0.060” to 0.127”. To experiment, I’ll start with the largest.   Tom