Suggestions for shooting tighter groups
Here are some ideas for a new rifle shooter to try..
1. Drop down to a 50 yard range if it's available. Just until you get comfortable shooting your rifle. If they aren't almost touching at 50 why go to 100 yards.
2. Use sand bags from the bench to stabilize the rifle. If your cross hairs are moving your groups are going to be staying over 3 inches at 100 yards.
3. Limit yourself to 20 rifle shots per a visit to the range. Bring your shotgun along and shoot a round of skeet/trap after shooting the 20 through the rifle.
4. Verify everything is tight with your scope rings and mounts.
5. Have a friend that won't give you to much grief shoot your rifle if the group size doesn't shrink. Just be ready to be beat with your own rifle.
6. Your rifle or scope could have mechanical issues that will keep it from shooting real small groups even after you address the above issues. Your crown on the barrel could be bad, rifle's bore could be rough, scope could be loose on the inside or allow the cross hairs to drift.
7. Relax, keep telling yourself that this all about having fun. Alot of deer have been killed by shooters that couldn't shoot better then 3 inches at 100 yards.