After quite some time of shooting a Glock 17 in Production, I have currently begun shooting a 1911 in Single Stack division of USPSA. Even though I have always shoot lead bullets through the OEM barrel and cleaned it after every 500 to 800 rounds, I never noticed any loss of accuracy with this pistol. I also shoot lead bullets through the 1911 and, with a clean barrel, it is capable of shooting 2" groups at 25 yards without any issues. At last weekend's match I noticed that I was unable to match my called shots with the holes on the respective targets. I would take some shots no farther than 20 yards that I was positive that they should have been in the A-zone only to find out that they were falling barely outside of this zone. I knew for a fact that I was calling my shots right because I was taking my time to line up my sights and squeeze the trigger just right but I was dropping points left and right. I took this pistol to the range yesterday to do some so shooting from the bench at 25 yards only to find out that all of a sudden my groups had gone from 2" to nearly 8". Regardless of how many times I shot this gun I just couldn't make it group at all. This barrel has approximately 650 of lead bullets through it without having been cleaned and I was amazed to find out that this number of bullets can send the accuracy down the drain so quickly. I am fairly new to shooting 1911's so I'd like to find out, is this normal for all 1911 pistols?