Other factors aside like bedding, temperature etc. I have done a little testing of various barrel cleaning and non cleaning techinques. On another forum an experiance big game hunter and myself said to just sight it in, tape over the muzzle and go hunting! While this is easy now that it's varmint season the targets are smaller and the accuracy of hitting right on with the first shot is more critical. I realize that long range hunting would also have this as a desireable feature. Right now I am cleaning the barrel and lightly oiling it. Nothing unusual at all about this! It does seem to hit right on with more consistancy and of course the first group is better also. I won't bore you with my barrel cleaning proceedure but it's very conventional. I just use #9 solvent, brass brush, wipe clean and oil it. On yet another forum a smith who prepares rifles for tactical police snipers says that after normal cleaning they wipe out the bore with 99% Iso alcohol. I don't agree with that one. I am leaving fouling shots out of this discussion. Of course that's the way to do it but I don't want to fire a shot just before hunting nor can I most of the time. What do you do?