Originally Posted by Topgun 30-06
FYI I quit buying Remington 22 LRs because there was a terrible problem with a high percentage of them not firing in my semiautomatic Winchester rifle. I think their QC sucks big time and now use CCIs. I reload for all my centerfire rifles and swear by Hornady components! I also think their manufactured ammo is hard to beat.
I'm not saying that rem .22lr brass is anything great. The priming charge formulation might be somewhat less sensitive other brands. But the high percentage of duds that you say you are experiencing with it shouldn't be happening. I would suggest trying the "hardware upgrade" approach, with the rifle's firing pin spring being what needs to be replaced/upgraded.
There are are 3 possible options:
Replace the spring with a new stock one. The current one may have become too weak
Replace the spring with a beefier one.
Remove the spring, stretch it out a bit, and put it back in. This is the no-fuss/no-muss "poor man's" method of beefing up an existing spring)
The other possibility is that someone has been dry-firing the rifle, which should NEVER be done, with any firearm that uses rimfire ammo. It will damage the firing pin by blunting/mushrooming/shortening it's reach. In THAT case, it is the firing pin itself that needs to be replaced.
One last possibility is that the rifle's firing mechanism is simply so dirty and fouled up, that it results in the pin not being able to move fast enough to consistantly set off the round's priming charge, when the spring releases it's tension on it. This is far more likely to happen in recoil-operated autoloaders. In this case a simple, but very thorough, cleaning (followed by re-lubing) is what is called for.