I have a Savage 110 (30.06) that I recently pillar bedded. After assembleing the rifle off the range I went. I set up my target at 100 yds and begain shooting. The first group (3 shots) measured 3 1/2", the second 2 11/16" and the thrid measured 1 13/16". The final group of the day was 1 3/8". Weeks later I made another trip to the range, and again sent 3 rounds down range, this time the group measured 7/8". Is this typical? Has anyone else seen this progression for large to smaller groups?

I've had this rifle for a few years now and have never seen this before