I tried many of the same factory ammos you have listed because I don't reload . The Hornady 55 grain V MAX shot like a laser for factory ammo out of mine . A little under 2'' at 200 yards in calm conditions with a 6.5 -20 AO scope . I was just using Hoppes # 9 and a couple passes with a brush to keep the carbon cleaned out followed by couple dry patches . Worked great only requiring only 2 or 3 fouling shots to get it's full potential back . I shot a lot of rounds thru it this summer and decided to give it a deep cleaning with KG12 copper solvent . It works like it is supposed to and I could not believe the amount of copper fouling that came out with several patches finished it off with the Hoppes #9 . Next time out my accuracy was gone . It probably took 100 rounds of ammo to get close to the way it shot before . I wont use copper cleaner again unless my accuracy falls off .
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