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I was out last weekend and shot my CZ452 Special with a 25" barrel over my Oehler Model 33 chronograph with some of the Aquila SSS ammo and others. I was getting 1" groups with the SSS and 3/8" to 5/8" with regular subsonic and supersonic ammo. Temps were about 90 degrees at 1100' altitude. Here is my chrono results:
Bt Wt Ammo Bt Type Vel SD NOTES
40 AGUILA RNL 1030 20 AGUILA SE (STANDARD VELOCITY)
60 AGUILA RNL 894 17 AGUILA SSS
40 CCI RNL 1010 20 CCI STANDARD VELOCITY (SV)
40 CCI HPL 1045 35 CCI SUBSONIC HP. BOLT CLOSES TIGHT
40 RUSSIAN RNL 975 21 RUSSIAN SNIPER
40 WIN TCHPL 1007 4 WINCHESTER SUBSONIC TCHP
42 WIN TCL 1136 7 WINCHESTER SUPER SILHOUTTE
40 WIN RNL 1192 7 WINCHESTER T22
I was expecting the SSS ammo to be a bit closer to 1000 fps. The light was right and I could watch the bullets fly to the target from about 50 yards on out to 100 yards. I also shot some out to 200 yards and saw a couple loose stability around 150 yards
Shoot Straight,
HK91
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Threaded Mode