I was happy over all with my group, but I was a little concerned about the first shot.

Sorry I don't have a target pic. My 2nd a 3rd shots were within one inch, one 2" high at 100 and one 3" high at 100 and 1/2" toleft and right, respectively. My first shot was 3" high and 3" left at 100, which I thought was a little strange and I don't think it was me! Is it possible that the flyer was due to the 1st shot from a clean cold barrel? Should I sight-in fora clean cold barrel if that is the case?

T/C Encore 26" bbl, 110 gr BH209, .458 300 gr NP with MMC Orange Sabot, 103 yds measured with rangefinder!

Thanks!