Lapua Midas+ .22 LR 40 gr Midas+ LRN Rimfire Ammo - 50/box is part of the Midas+ line from Lapua, an improvement on the previous Midas line. Although Midas saw years of success, the company saw room for improvement and took the opportunity to create the Midas+ line. The .22 LR 40 gr is one of these options and is designed for sport shooting or hunting. As with any other Lapua products, the cartridges are each individually checked, with every lot being tested to ensure they meet strict requirements. This Midas ammunition has the world records for the 60 shots prone as well as the BR-50.