I must have bought a lemon. My .223 Predator shot 5.5" groups at 100 yards before I changed the stock with Aguila 55 grains and not much better with others. The best it did was a 2" group with some Russian 62 grains that stuck in the chamber. Hornady 75 grains Match did not do any better. I since have upgraded the flimsy stock that touched the barrel on the right side to a Boyds At-One in which it has been bedded and it now shoots the same Aguila in 2.5" after 80 shots of fouling, worst before that. Just ordered diverse high quality Match ammo to go through it this week as I saw some improvement with the new stock, bedding and trigger work (changed spring and polishing by a gunsmith) and now want to know it it will finally shoot or not. The magazine is the five shots one and don't like it much. When it is cold (it is often cold here, winter is coming), you could swear it is going to break opened in half and it is difficult to load. If I had to do it all again, I think I should have waited and bought something else.