Chronograph session  
  May 20, 2009  
  Rio Grande Renegades Range, ABQ  
  75 F, 6 mph wind, 30% humidity, sunny  
  Chronograph: Oehler 35P Printing Chronograph with proof channel  
   
  Gun Caliber Bullet Wt Type Powder Gr. Wt. Gr. Vol. Avg Vel ES SD PF  
  Baer TR Spcl, 5" barrel .45 ACP 200 LRNFP HP38 5.3 801 57 23 160.2  
  Colt Gvt. Model, 5" barrel .45 ACP 200 LRNFP HP38 5.3 817 21 9 163.4  
  Cimarron '73 Carbine, 19" barrel .45 Colt 200 LRNFP Trail Boss 5.5 823 35 14 164.6  
  Cimarron ER, 4-3/4" barrel .38 SPC 105 LTC APP 3f 10 775 166 59 81.4  
  Cimarron ER, 4-3/4" barrel .38 SPC 105 LTC APP 3f 10 792 254 101 83.2  
  Cimarron ER, 4-3/4" barrel .38 SPC 125 LTC APP3f 17.5 735 126 49 91.9  
  Cimarron ER, 4-3/4" barrel .38 SPC 125 LRNFP 777 3f 17.5 904 89 37 113.0  
  Taylior's '73, 18.5" barrel .38 SPC 125 LTC APP 3f 17.5 1105 120 63 138.1  
  Taylior's '73, 18.5" barrel .38 SPC 125 LRNFP 777 3f 17.5 1194 37 17 149.3  
  Ruger Old Army, 5.5" barrel .44 Percussion 144 Speer RB Cowboy 16 556 111 46 80.1  
  Ruger Old Army, 5.5" barrel .44 Percussion 144 Speer RB APP 3f 16 632 120 50 91.0  
  Ruger Old Army, 5.5" barrel .44 Percussion 144 Speer RB Cowboy 20 617 77 31 88.8  
  Ruger Old Army, 5.5" barrel .44 Percussion 144 Speer RB APP 3f 20 621 148 68 89.4  
  Ruger Old Army, 5.5" barrel .44 Percussion 144 Speer RB Cowboy 25 707 77 31 101.8  
  Ruger Old Army, 5.5" barrel .44 Percussion 144 Speer RB Goex 3f 30 748 142 56 107.7  
  Ruger Old Army, 5.5" barrel .44 Percussion 144 Speer RB Express 3f 30 820 56 25 118.1  
  Ruger Old Army, 5.5" barrel .44 Percussion 144 Speer RB Cowboy 30 769 51 19 110.7  
  Ruger Old Army, 5.5" barrel .44 Percussion 144 Speer RB APP 3f 30 802 166 54 115.5  
   
  I set up the chrono primarily to test Wild Bunch Loads since the loads tested in January were marginal. I wouldn't go to a match  
  with a load with no safety margin. 160 is my comfortable minimum.  
  The 125 gr. .38 Spcl loads are for knockdowns, primarily rifle, since I seldom shoot a big match using cartridge pistols.  
  The ROA loads go from "smoke standard minimum" to "Recalcitrant knockdowns" or "Charging Buick" loads.  
  The 30 gr. Goex Express 3f loads proved that Express is pretty hot stuff.  
   
  Integrating January Chrono tests with May tests:  
  Wild Bunch Loads, minimum power factor 150  
  Colt Gvt. Model, 5" barrel .45 ACP 200 LSWC HP38 5.0 784 72 29 156.8  
  Colt Gvt. Model, 5" barrel .45 ACP 200 LRNFP HP38 5.0 759 60 28 151.8  
  Colt Gvt. Model, 5" barrel .45 ACP 200 LRNFP HP38 5.3 817 21 9 163.4  
  Baer TR Spcl, 5" barrel .45 ACP 200 LRNFP HP38 5.3 801 57 23 160.2  
  Cimarron '73 Carbine, 19" barrel .45 Colt 200 LRNFP Trail Boss 5.0 750 48 18 150.0  
  Cimarron '73 Carbine, 19" barrel .45 Colt 200 LRNFP Clays 4.6 676 148 52 135.2  
  Cimarron '73 Carbine, 19" barrel .45 Colt 200 LRNFP Trail Boss 5.5 823 35 14 164.6  
   
  color code:  
  Fails 150 PF    
  Passes 150 PF    
  Passes 150 PF Comfortably