ALL WE ARE GOING TO DO IS SMOOTH OUT THE RUFF SPOTS A LITTLE THIS IS NOT A LAPP. LAPPING IS AN ENTIRLY DIFFERENT PROCESS.
Lapping is a process where actual metal from the barrel is removed. This can be done using valve grinding compound or by fire lapping. Comet Scouring Powder can also be used in place of the valve grinding compound. Fire lapping is a method of taking conical bullets and using valve grinding compound as a lube. You shoot them under low powder charges, causing them to spin with the rifling in the barrel and actually remove metal. Lapping a barrel is a drastic step and should only be done if the barrel is in very ruff condition or as a last straw effort for a rifle that will not behave. Usually if the bore is real tight, then it is a process of looking for a different projectile or sabot to use in the rifle.
TO JUST REMOVE THE RUFF SPOTS
OR SMOOTH THINGS OUT A LITTLE BIT
I like to use J-B Bore Paste. Get a patch worm, a bore brush, cleaning jag, some Scotch Brite Scouring Pads (the old worn out ones work good too), plenty of patches, some gun oil, gun solvent and a pail filled with HOTsoap water. A couple ramrods are sure helpful in this also.
Start with a clean rifle barrel and if possible remove it from the stock. Now put the cleaning jag on a ram rod and take a patch.
Lightly Saturate the patch with gun oil and swab the barrel.
Now put a chunk of Scotch Brite on the patch worm. Smear a small amount of J-B Bore Paste on the scotch brite and then working in strokes from top to bottom (no scrubbing small areas unless you feel a real ruff spot) swab the barrel muzzle to breech. That equals one stroke. Every 15 strokes you add more Bore Paste to the scouring pad. I like to do three sets or 45 strokes.
After the bore paste, put the rifle in the water bath. Using a cleaning jag and patch give the barrel a good
hot soap and water bath. After the water bath dunk the bore brush in the solvent you have and give the barrel at least 15 strokes. This will remove anything the water bath might have missed. Now swab out the barrel with some solvent patches.
After this, run dry patches through the barrel and it should
SHINE LIKE A NEW DIME when you look through or into it. Since you have taken the inside ofthe bore back to bare metal it is very important to put a good quality gun oil back in there. I saturate the patch with oil and swab the barrel real good. Make sure you coat the entire barrel.
This J-B Bore paste is also good when you have a lead, copper or plastic build up. I will once or twice a year give the barrel a good scrub with the stuff to make sure it is nice and clean.
I hope this is what you wanted.