I should have bought a 75 in 300 UM when Sako dropped them in favor of selling more short mags, lets face it is a specialized cartridge but a very good cartridge design at that. Some posters at other sites are reporting unbelievable 300 yard groups with Sako 75's probably a combination of gun and cartridge IMHO . Stubblejumper is probably the most experienced with this cartridge on this board and I haven't heard too many negatives from him when it comes to this cartridge.