Posted: 2/9/2007 5:58:19 AM EDT
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Lately my .40 has been jamming while cycling. The round will enter the chamber but it appears it comes in at an angle and jams, staying about 1/2 of the way out of battery. It happens with all my clips, 10 and 12 rounders. It jams after nearly every shot when using cheaper FMJ rounds, and jams about 50% of the time when using a good round like Federal Tactical. Any ideas on what might be causing this? I only have about 400 rounds through the gun. |
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Check here: http://www.praxagora.com/lunde/WaltherP99FAQ/ 1) Who made your magazine? Are they OEM? 2) What types of ammunition have you tried? 3) When was the last time the pistol was cleaned? 4) Any damage to the barrel? Ejector, stripping rail, or extractor. 5) Does is jam when manually cycling the slide? If so, can you post a picture? 6) Did anything change when you noticed the jams starting? Action work, lowered ejection port, new barrel? BSW |
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Try a different ammo first second try a different make of mags (promags always work great  )then try a new mag with the different ammo If that doesn't work take a good look at the feed ramp for burs or bad finish if none of the above it is most likley a mag seating problem and you should send it to Walther USA |
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Today I took my CCW (CPL) class and brought my Wather for more testing. I picked up some remington FMJ, even though I dont like their ammo I thought I would give it a try. The gun seemed to be jamming less, but still the same rate with each mag (two 12rd and 3 10rd factory mags). I decided to try a different hand placement by cupping my offhand closer to the muzzle and having my offhand index finger grasping the trigger guard. This made a big difference. I was running at 100% cycling. I'm a bit confused as I know I was never limp wristing it, may this just be a characteristic of the gun and my style of shooting where this handplacement would be required? In either case I guess I should take it out for another 200-300 rounds and see how its shooting. |
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I have had two P99's in .40. The first received about 5,000 rounds through it, the second received about 15,000 rounds through it. In all the time that I had them, I never once had a single jam or failure to feed. I believe the P99 to be one of the most reliable semi-auto's on the market. Check your grip, and make sure you clean it...the mags too!! Boot. |
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Quoted: Try a different ammo first second try a different make of mags (promags always work greathen SD307: Glad you have been happy with ProMags.. My experience is contrary to that, and honestly your comments about "promags" always work great" is a first for me. I don't recommend aftermarket mags anyway. I just ordered two full-capacity (16rd) mags for my P99/AS from CDNN for $28.95 each (+shipping). These are factory SMITH&WESSON SW99 mags, but work perfectly, are made by MecGar (factory manufacturer). I don't know how much aftermarket ProMags are, but probably not much less than the real thing. A couple of months ago I also purchased new Walther marked 10rd mags (for my P99c/AS) @ $19.95 ea. +shipping. Only later did my brain kick in and remind me I could have bought the identical mags S&W marked for $12.95 each. The few experiences I've had with ProMag have been disappointing, but I'll have to admit the factory has excellent customer service and will keep sending you free replacements until you get one that works.. That's great, but I feel better about a mag that worked the first time, and has never given me problems. Walther factory replacement mags are just not so pricy that I would fool around with any other brand to save a few bucks. Just my old fart opinion, not trying to be confrontational.. Best Wishes, J. Pomeroy |
When you limp wrist the weapon it takes away from the force required to cycle the slide fully, causing the weapon to malfunction. Anybody with a new pistol of good quality that is having malfunction issues like theese should look at their grip first before anything else. It is a very common mistake made by new pistol shooters. SGT Bell |