b.hall,
It is my understanding that just cleaning the barrel in a normal sence like most do after hunting is not enough.You must get ALL the copper out of the bore before the next round is fired.I forget where I read the procedure but I have followed it but made a few changes along the way.I no longer do the 20 round singe routine and then follow up with 2 shot groups then 3 shot groups etc.That is a lot of ammo and I can't say that breaking in a barrel has pro's and con's since there are yea's and nea's to barrel break-in.That's why I cut back on it and just do what I deam necessary.
My routine ,clean the new barrel first.
1. Fire 10 rounds and clean in between eash shot by:using regular Shooter's choice solvent to clean ALL the powder residue out of the bore.
note:you must get all the poder residue out of the bore or you won't be able to get to the copper residue.
next,after making sure all the residue is out of the bore with a clean patch,follow with a patch soaked in Shooter's Choice copper solvent and let soak for 5 to 10 minutes max.After the soak,run a patch with regular solvent through the bore and remove the patch with the blue copper on it from the muzzel end.Do not run the patch back through the bore and contaminate it with the copper.Follow with a clean patch with solvent on it until no sign of copper.If you still get signs of blue copper,repeat with the copper solvent followed by the regular solvent and clean patch method until there is no sign and then go shoot again.( See why I cut back on the number of rounds fired to 10?
2.Fire five 2 shot groups followed by the same cleaning method.
3.Fire five 3 shot groups followed by the same cleaning method
Supposedly,your barrel is now broke in.
There are many barrel break-in methods out there,some are more extensive and some are least extensive.Does it do any good?don't know.Does it do any bad?don't know.I do know that there is less copper build up and my groups do tighten up a bit.And cleaning becomes less a chore in the future.There are pro's out there that say that barrel break-in is a waste of time and may do more harm then good and wears out the barrel quicker.I won't dispute that.All I know is that I just don't go out and buy a nice rifle to set in the safe and leave it ,only to take it out to look at or wait for a year or two to go hunting with it.Heck,I shoot them and when I run out of bullets,I load more.A little break-in period doesn't hurt that much,in my own opinion,if only to make cleaning easier in preperation for my next shoot.