I suspect that many of us stockpile various items. .22 Long Rifle ammunition is one of those commodities that seems to lend itself to such stockpiling. It's reasonably cheap, its versatile, and its of great use. If you are anything like me you end up buying a bulk box or two on a relativley frequent basis. One box here, two boxes there, another couple boxes somewhere else and you can end up with quite a bit of this stuff on hand.
I tend to buy this stuff on the basis of economy. I do buy quality .22 for specific uses, but I often purchase 'whatever is cheapest' from CCI, Winchester, Federal or Remington for long term stockpiles, blasting ammo, general plinking and possible future use as a trade commodity. It all has its own role. It doesn't make a whole lot of sense to use Eley Super Match ammo or CCI Velocitors for a 400 round plinking session shooting stumps, pine cones and targets of opportunity when bulk pack rem or Fed .22's are half the price. While some is more accurate than others, it all (generally) works pretty well.
Not long ago I picked up several boxes of gray boxed Winchester Xpert HV .22 LR ammo. It's packed 500 per cardboard bulk pack, and supposedly drives a 36 grain hollowpoint to 1280 fps. I have not chronoed this so I cannot verify the accuracy of this claim.
I do know this: This ammo will not reliably cycle many of my firearms. It does fire reliably but it lacks the sufficient energy to fully cycle my Ruger .22/45 (which fires and feeds EVERYTHING) and my Kimber .22 conversion slide on a Kimber TLE 1911. Each time I squeeze the trigger the round fires, the slide moves reward somewhat but not enough to eject the empty (or strip a new round from the magazine). It's classic low-energy short recoil. For what its worth 20 rounds through the Ruger resulted in 20 short stroke failures, and 20 rounds through the Kimber resulted in 20 more short stroke failures. These firearms have zero failures with other ammo. For what its worth the recoil also seems 'light'. I strongly suspect these rounds are not moving anywhere near the advertised 1280 fps. The do reliably function and feed a Mossberg Plinkster semi, and of course there are no issues with a variety of bolt, lever and break action .22's.
In any case be advised: This ammo cannot be recommended.