My son decided to have some work done on his gun. After he got it back we went to the range to sight it in, He brought limited amount of ammo 20 rnds. We could not even come close to getting on paper. We were shooting at 100 yrds. We are going back on Wednesday. I was thinking of getting a laser bore sighter to do some adjustments prior to going to the range. Any one have any suggestions. Thanks JP