Tech Tips
• The accuracy of 17 caliber rimfires is tied to cleanliness to a far greater extent than other rimfire firearms. Clean the bore often, as much as 2 to 3 times per box of ammo.
• CCI rimfire plastic boxes are designed to be reused. Take out the grid and store small parts, tools, fishing tackle, etc. Be environmentally conscious and pick up your trash.
• Oils will "wick" into the powder and make the cartridge inert, or cause erratic performance. Store all ammunition away from sources of oil and moisture.
• Sight-in at the distance you find most of your targets, then test closer and farther away to learn your point-of-impact at those distances.
• Be sure of your backstop. NEVER shoot over water. You can bet the bullet will ricochet and barely lose much, if any, velocity.
• Pick the ammunition that is suited to your target. That is why CCI has such a broad offering of rimfire ammunition. The rounds that will rid you of pests may prove too potent for the game you want to put into the pot.
• Accuracy in rimfire ammunition is tied to how the bullet is presented to the rifling. If one bullet style or velocity is not giving you the results you're looking for, try another. Subtle changes in bullet style or velocity can make an appreciable difference in accuracy.
• Placing lead-bullet ammunition in direct sunlight or a hot car trunk can melt the bullet lubricant and allow it to permeate the powder. That can cause misfires.
• If you have a malfunction and need to manually eject a fired case from a semi-automatic firearm, check the bore for obstructions BEFORE firing another round. In some circumstances, this condition could point to a bullet-in-bore.
• Both our Short and Long CB rounds are loaded to the same velocity. Depending on the gun, one may feed better the other better in repeating firearms. That's why we make two types They will not cycle most semi-auto guns.
• Make sure primers are seated .003" to .005" BELOW FLUSH to insure reliable ignition.
• Cleaning primer pockets with an RCBS primer pocket brush removes residue build-up that can cause hard seating.
• Avoid using a knife or screwdriver blade to clean primer pockets. These damage the pocket walls and can cause gas leaks.
• Remove crimps found on many military primer pockets before reloading the cases. RCBS makes a dandy Pocket Swager to do this efficiently.
• Shotshell primers marked "57" or "157" will only fit in older Remington cases (60's and early 70's vintage). They are too small for use in newer shotshell casings.
• Both CCI "Mil-Spec" rifle primers (Nos. 41 and 34) are MAGNUM primers and intended for use in military-style semi-auto rifles where a slam-fire may occur. Don't substitute for standard primers without adjusting the load.
• Mixed-up your rifle and pistol primers? CCI pistol primers have a light red paper disk under the anvil. Next time, keep them in the original box until you load them.
• Yes, substituting Rifle primers for Pistol primers is a bad idea, even though they may fit in the primer pocket. There are several differences that affect safety and reliability.
• Hunting in the rain? A dab of masking tape over the end of the barrel will keep the rain out. Shoot through it if needed, or remove before firing.
• The 22 Long Rifle is NOT a low-pressure cartridge. The industry pressure limit is 24,000 psi, greater than the 45 Auto +P.
• The engineer who developed CCI Stinger® in 1975 was looking for a more effective rimfire jackrabbit round. He definitely succeeded.
• Store primers in their original packaging, and away from heat, sparks, open flame, or from hands of those who shouldn't be playing with them!
• For most 22 LR hunting, a 75 yard sight-in is just about right for a reasonably accurate rifle.
• The man who invented the primer system common in Europe was an American, Col. Hiram Berdan. The man who invented the primer system used in American ammo was an Englishman, Edward Boxer.
• A typical centerfire primer creates temperatures between 3000 and 3700 degrees F.
• The original 22 Short cartridge was developed for a Smith & Wesson revolver.
• Misfires? The most common cause of rimfire misfires is a poorly maintained firearm.
• Don't attempt to fire 22 LR ammo in any 22 Magnum firearm. The LR case is smaller and can swell to the point of rupture--never a good thing,
• Never store any ammunition in leather belt loops unless the cases are nickel-plated. Residual processing chemicals in the leather will attack brass or aluminum cases, weakening the case walls.
• The standard rifling twist for a 22 LR is one turn in 16 inches.
• Rimfire shotshells are short-range cartridges. With the small shot charge, patterns begin to degrade after 15-20 feet. Shotshells are not designed to cycle semi-auto firearms, but can be hand-cycled if needed.
• An oversized primer pocket in a fired case is a near-certain sign of too much pressure!
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