Barrel lapping

I think one would be a fool to lap any quality barrel... I don't think you would do anything but harm it...

What is your match Walther barrel not doing?

Mine shoots simply fantastic...
 
Some people say they get good results by using J-B bore paste and then waxing the inside of the barrel after with good results.
 
I just received email from Lothar Walther.
"No, these barrels have not been polished by lapping."

Guess its time to 2468 - fun afternoon on a rainy day...
 
Presumably you believe your accuracy is suffering with your $250 Crosman 2300T CO2 pistol. What kind of results are you expecting and what are you getting?

A main cause of inaccuracy not related to a bad barrel in pellet airguns is using inappropriate pellets. Crosman pellets that are sold by the tin, for example, are well-known for producing less than consistent results in many airguns because the pellets themselves are too frequently of inconsistent size and weight. Have you tried pellets with different head sizes? There is a wide range of head sizes available for .177, ranging from 4.48mm to 4.53mm.

You may wish to try different pellets before attempting to lap your barrel.

 
I have lapped a few barrels BUT only for Centre Fire rifles, 303's & 30-06's. All performed well after lapping. I used lead laps on a rod but in the last 20-30 years some people have used PRESSURE LAPPING, coating bullets with various coarseness abrasives and shooting them. (Tried this only once using JB, as mentioned above). If I remember, barrels that have been PRESSURE (or FIRE) Lapped have the throat lengthened so it's a tapered result. I'm not sure this would improve an air rifle or not. I've recently tried shooting different sized pellets, as mentioned by Grauhanen, and am happy with the improvement from selecting a "better" size.
 
Have you pushed any pellets down the barrel to feel for rough or tight spots? If it feels smooth maybe start with lapping the crown instead. As stated above dont expect good results with cheap pellets.
 
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