When I shot Thunderbolt some years ago, I tried a total of six Remington .22 LR ammos, a brick of each. Besides Thunderbolt, they included: Remington HV, Remington HV HP, Remington Target, Remington Cyclone HP, and Remington Subsonic HP. All shot more accurately than Thunderbolt, but some, not by much. This is for information only and I'm not sure it would be at all relevant today. I have no idea if these Remington .22 ammos are even in current production.