Finally got around to shooting my recent stash of the highly touted, and very expensive Geco Rimfire Semi-Auto .22 LR at my buddy's place today. Though the rounds are greasy and hard to load in a detachable magazine, they seem to offer good accuracy and a modest report. They ran perfectly through my Ruger 10-22, Sig 522, and Beretta 76. We had zero issues over the hundred or so rounds we fired, which surprised me, as I thought the heavy grease/oil/lube on the rounds would start to gum up the works as the guns heated up and started to get dirty. This is the most reliable and impressive .22 LR Rimfire Ammo I've fired until proven otherwise.
It's an exceptional ammo, much better than most U.S. made brands, and sells for less. Very, very accurate from my CZ-75.