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Posted: 3/24/2012 8:12:59 PM EDT
| Got a MP15-22 and had some failures the first time out with Fedral Bulk. First few rounds of a magazine would work but then pull the trigger and click. Noticed the bolt wasn't completely forward. I dropped the mag and ejected the round and no firing pin mark. This happened a few more times this range session. Took it home cleaned it, first 20 rounds the next time were fine then it happened again and continues every 5-10 rounds. Any ideas? |
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Quoted:
1. did you oil the gun. (the 2 bars on the bolt) 2. are you only using the mag that came with the gun 3. try using the federal hi vl match bulk, cci stingers or cci blaser bulk box good luck mine runs like a charm with all of those The S&W 15-22 uses a standard dimension reamer for standard length .22lr cartridges. Using Stingers or Velocitors or any non-standard length hyper-velocity cartridge will result in gross over-pressure. Oh sure, you can get away with it once in awhile, but sooner or later you'll have some explosive reminder of why you should be a good boy and follow proper safety precautions. But of course, you know better. 
Ted |
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Quoted:
I have one and the S & W manual specifically advises against using Stingers. From the manual : DO NOT use stingers in a 15-22 Performance Model ONLY. Top of page 11 in the 15-22 manual : CCI Stinger brand ammo CAN be used in M&P 15-22 Standard Model Rifles ( which do not have "Performance Center" below the ejection port ) 
S&W DOES NOT recommend: Any and all sub sonics, Remington gold bullet-Rem. Thunderbolt-Rem. Target 22, Win. Wildcat EDIT: S&W recommends: CCI Mini Mags-CCI Standard Velocity Aguila Super Extra std. and high velocity Federal GameShock- American Eagle Winchester Super-X High Velocity |
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