This rifle will stack .177 pellets in one hole out to 20 yards.   This gun was made specifically for the air rifle 10 meter discipline.   I personally used it for indoor practice during the week before shooting the CMP "across the course" high power rifle matches back in the day.   Great adjustable gun for all ages and sizes.    Holes drilled in butt stock to add lead shot for weight adjustment.    Butt plate cracked but was filled with fiberglass to repair.   Excellent setup with everything including the diopter rear sight and multiple front sight posts and sling.   Entire complete kit in excellent condition.