NEW IN 2006: We have revised our "BARREL BREAK-IN PROCEDURE". We found that only three shots (instead of 10) are necessary for the break-in of a Pac-Nor barrel. Factory barrels will probably need 10 shots or more. The following is specific to Pac-Nor 19 caliber barrels. Change patch and brush size for other calibers.  

To enjoy maximum accuracy potential, reduced fouling, and quicker field cleaning, please follow this short break-in procedure .

James Calhoon Mfg . uses Pac-Nor's handlapped, "Supermatch" barrels and break- in is a snap. The following basic break-in method, fire one shot and double clean; repeat 3 times, will polish out minor metal imperfections which remain after lapping. If break-in is not followed and imperfections are not removed, you may actually never be able to get the bore completely clean. The result: premature barrel fouling, and accuracy loss. To save time and rounds, sight in your scope as you follow the break-in procedure.

Always use a bore cleaning guide to avoid damage to your bore . James Calhoon Mfg. supplies bore guides for many different firearms, as well as 19 caliber cleaning rods, jags and brushes. A 17 caliber rod can be used, but its inherent flimsiness may lead to much cussing. 

BREAK-IN INSTRUCTIONS

1. Run 3 patches (1 1/8") soaked with bore cleaner through the bore. We recommend James Calhoon GT 40 bore cleaner or Shooter's Choice.

2. Brush 6 in-and-out strokes with bore cleaner applied to a bronze 19 caliber brush. Always use a bore guide. Brushes must be "tight" to be effective. Expect to wear out a brush during the break-in procedure. New 19 Caliber brushes will feel extra stiff, but will soften with use. Important tip: rinsing brushes with water after use to remove bore cleaner, will make the brushes last much longer.

3. Run 3 patches soaked with bore cleaner through bore, then 2 dry.

4. Scrub the bore with 2 patches soaked in copper remover such as as Sweet's, CR10, Barnes or Bore Tech Eliminator. Let sit for several minutes. Push a dry patch through and observe the patch for blue /green color. Also, visually check muzzle for copper. Do not use a bore scope at the muzzle, to avoid damage to the crown.

5. Repeat step (4) until the dry patch shows NO blue/green color. ALL traces of copper must be removed. Continue to step (6) only when the dry patch shows no color. The brushing action in step (6), will burnish and polish the bore, but only if the bore is completely clean and free of jacket material.

6. Wet bore with one patch soaked with bore cleaner. Then brush 6 in-and-out strokes with bore cleaner applied to a bronze 19 Caliber brush. This step burnishes the clean barrel.

7. Run 3 patches soaked in bore cleaner, then 2 dry patches.

8. Fire only 1 round

Repeat steps (1) through (8) TWO more times.

Now, you're ready to go to town. (Dog Town!)