I just had 2 B14Rs, one LH and one RH, rebarreled with shilen 16tw on a win 52D chamber. This is my results. I did not clean between each set so lube mixing and seasoning will be a factor between each set. You can use this info however you like
This is at 50yds, occasionally 2mph left to right wind but waiting between the winds.
Each group is a shot of 5 and the SD/ES is the total sum of all 5 groups.
*note the Eley match group on the bottom and top, I accidentally grabbed the wrong lot box and shot on the bottom, so I shot the correct lot on top