I swapped a 22X Nightforce NXS to my CZ457 (temporary, maybe) and shot 10 rounds of all of the different brands of .22LR that I had on hand. The WInchester Super Suppressed had the best 100 yard group. That's the one I use on things that have arteries and nerves.
That said, I wouldn't trust the group sized too much. I left my front rest at home and the rifle wasn't as stable as I would have liked it to be. The ES/SD for Lapua and Eley were the best. Lapua's "Super Long Range" cartridge had the best ES/SD. All rounds shot through a Dead Air Mask suppressor. The slowest and fastest rounds had the worst groups and worst ES/SD.
I may test for groups with the top 5 on another day.
That said, I wouldn't trust the group sized too much. I left my front rest at home and the rifle wasn't as stable as I would have liked it to be. The ES/SD for Lapua and Eley were the best. Lapua's "Super Long Range" cartridge had the best ES/SD. All rounds shot through a Dead Air Mask suppressor. The slowest and fastest rounds had the worst groups and worst ES/SD.
I may test for groups with the top 5 on another day.
