Re: Barrel Length 22in or 16.5in?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JunkYardPerro</div><div class="ubbcode-body">Just an " FYI "
http://rimfireshooting.com/index.php?showtopic=5118 Posted 24 April 2010 - 02:11 AM
We conducted our barrel length vs velocity test on March 21, 2009 at the North Alabama Shooting Association range in Sheffield, Alabama.
We used five CZ 452 .22 rifles with different barrel lengths and fired six rounds each of six different cartridge types. The chart below reflects the average velocity of the six rounds followed by the standard deviation of the six rounds.
The rifles were:
CZ 452 Ultra Lux with a 28.6" barrel
CZ 452 Special with a 24.8" barrel
CZ 452 American with a 22.5" barrel
CZ 452 FS with a 20.7" barrel
CZ 452 Classic with a 16.5" barrel (Fuzzy the Limey's old CMP Sporter rifle)
The cartridges were:
CB Longs = CB
RWS Subsonic Hollow Points = SSHP
Wolf Match Target = Standard Velocity or SV
American Eagle Solids = Lead High Velocity or LHV
CCI Mini Mag Solids = Plated High Velocity or PHV
CCI Stingers = Hyper Velocity or HypVel
-------CB------SSHP------SV-------LHV-----PHV----HypVel
28.6 652/53 968/16 1037/13 1206/16 1188/24 1660/50
24.8 676/34 997/20 1062/13 1219/22 1217/40 1660/47
22.5 653/65 998/08 1069/10 1229/22 1213/24 1708/31
20.7 701/44 957/39 1062/05 1224/14 1190/11 1661/26
16.5 685/22 949/27 1057/14 1205/17 1208/22 1666/39
*Also pinned in the CZ Rifle forum.
Another thread on the same topic:
http://www.rimfirecentral.com/forums/showthread.php?t=304830 JP</div></div>
Thisis excellent info thanjs for sharing