Some .22lr ammo falls apart at 100 yds and does not hold the same size groups in MOA that they do at 50 yds. I'm guessing the RART did not have the ammo it wanted this morning.
Well, I tested CCI SV, CCI Green Tag, SK Rifle Match and Wolf Match Target. Out of those, the Wolf Match Target had the best group. I should have brought the Lapua to test.