| More information about the Walther P22 and the | | | | A method for increasing the back pressure |
| walther P22 magazine can be found at | | | | through the chamber needs to exist in order for |
| SpentBrass. | | | | the cheap stuff to function as well as the quality |
| There's a pressure booster and barrel adapter | | | | ammunition. Enter the Walther P22 barrel adapter |
| available for the Walther P22 .22 caliber pistol that | | | | and pressure booster. |
| will allow it to function reliably with less expensive, | | | | The Walther P22's threaded barrel accommodates |
| lower grade ammunition. | | | | a number of accessories that perform various |
| The Walther P22 .22 caliber pistol is notoriously | | | | tasks. A suppressor is perhaps the best know |
| picky about ammunition. Use ammunition that | | | | and most widely used example of an accessory |
| doesn't have a heavy enough bullet or too little | | | | affixed using the P22's threaded barrel. But the |
| charge and the result will be numerous feed | | | | pressure booster may soon claim this title for |
| failures and ejection problems. Quality ammunition | | | | itself. |
| with a heavy round and adequate charge will | | | | The Walther P22 pressure booster attaches to |
| function without incident. The only problem is that | | | | the pistol's barrel using an adapter that is threaded |
| quality ammunition is more expensive. Now there's | | | | at both ends. The adapter has a smaller diameter |
| a pressure booster available that allows the P22 | | | | end for attaching to the barrel and a larger |
| to operate reliably with lower grade ammunition. | | | | diameter end for accepting the threaded pressure |
| The two main ammo-related problems that P22 | | | | booster. The pressure booster is roughly three |
| owners experience are feed and ejection failures. | | | | inches long with a slightly larger diameter than the |
| Both of these issues are caused by the slide not | | | | barrel. |
| having enough energy to fully cycle. When a | | | | The inside diameter of the booster does not |
| shooter pulls the trigger of a P22, the hammer | | | | actually contact a round as it exist the barrel. |
| falls and strikes a round in the chamber. The | | | | Instead the round passes straight through the |
| pressure released by the burning charge inside the | | | | baffle of the booster. The booster increases the |
| round's casing pushes the bullet out through the | | | | amount of pressure and the length of time |
| barrel and the casing out through the rear of the | | | | pressure is applied to an existing round. It has the |
| chamber. | | | | same affect on the casing that's pushed out of |
| The P22's short 3.4 inch barrel allows the majority | | | | the chamber against the breach block. The |
| of the pressure generated from a discharging | | | | increased back pressure and the duration of the |
| round to escape forward through the barrel | | | | pressure increases the force of the casing against |
| behind the exiting round. The small amount of | | | | the breach block thereby allowing the slide to be |
| pressure remaining isn't enough to fully cycle the | | | | pushed completely reward fully cycling the action. |
| action by pushing the casing back through the | | | | You don't have to be the technical type to know |
| rear of the chamber and against the breach block. | | | | that a pressure booster will save you money by |
| Better quality and high velocity ammunition has a | | | | allowing for the reliable use of less expensive |
| larger charge that despite the increased loss of | | | | ammunition. A pressure booster and adapter |
| pressure through the barrel is still able to fully | | | | combo can be ordered from SpentBrass for |
| cycle the P22's action resulting in reliable | | | | around forty dollars. At a difference of around six |
| performance. Cheaper and low velocity | | | | dollars per fifty rounds, it wouldn't take long for |
| ammunition doesn't pack the punch needed to | | | | the pressure booster to pay for itself. |
| accomplish the same reliable performance. | | | | |