Only shots within the .90" diameter hole will flip the paddle. After scoring a bullseye hit, just shoot the 4" paddle to reset the target. The removable Bullseye Plate matches the 10 ring and 5 ring on an Official NRA Bullseye B-2 Target (NRA Pistol Rules). Remove the Bullseye Plate to reduce the difficulty and speed up the pace. With the Bullseye Plate removed, the 4" paddle is presented on both sides of the target. 1/4" thick AR500 steel paddle, front plate and bullseye plate. Rated for all .22 LR handguns and rifles. Minimum distance: Pistols = 10 yards | Rifles = 20 yards. Paddle measures 4" diameter | Bullseye hole measures .90" diameter. Removable b Mfg: Challenge Targets SPECS: Paddle: 4" diameter x 1/4" thick AR500 steel - ships unpainted. Front Stop Plate: 5.9"x11" x 1/4" thick AR500 steel - ships unpainted. Bullseye Plate: .90" inside diameter (NRA 10 ring) | 5.57" outside diameter (NRA 5 ring). Stake Construction: 1/4"