Sk semi auto 22 lr - SK Semi-Auto Rifle .22 Long Rifle 40 grain Lead Round Nose Brass Cased Rimfire Ammunition

This last three lots of SK Semi Auto have performed well for the price.(better than CCI SV) I have purchased almost 2k of these and so far the SD's are around 12-15 FPS has varied due to the temp at time of the shooting season. but the ES is is between 42 and 76. The warmer it is the larger the ES. The number of rounds per session is between 25 to 37. Rim thickness varies between 0.0440 and 0.470 with the majority within 0.0455-0.0457.(500 rounds out of 1500). Firearm used to test this was CZ 457 ATOne model with 24" threaded OEM barrel. With bi-pod and rear squeeze bag. Statics are from a Garmin Xero C1 Pro Chronograph.