How to break in a barrel properly? - Page 9
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Old 12-05-2011, 01:14 PM   #81
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The first time I looked down the barrel of a couple of my rifles and handguns and saw the orange streaks I thought it was rust. I used Kroil penetrating oil and it took it right out. I was told I would have trouble getting moly coating out but the Kroil removed it also. I had bought a box of moly-coated bullets to load but was told I should not go back to regular copper coated bullets if I started using them. The kroil took the moly out with no problem. Even after using the Kroil I still removed some fouling with the foaming bore cleaner.

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Old 12-05-2011, 06:21 PM   #82
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Interesting thread. Perhaps we can get Neil to post about lapping barrels. I know it makes for easier cleaning down the road, and seems to really improve accuracy as well. Especially if done on a new barrel.

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Old 12-05-2011, 08:44 PM   #83
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I've hand lapped a lot of barrels & I've NEVER seen a decrease in accuracy by lapping them. In fact I recommend it to anybody wanting decreased fouling and better accuracy in a new factory gun. The reason for the increased accuracy is the more a barrel is fouled, the more it will deform the bullets or strip jacket fragment material from them. By lapping the barrel it usually won't foul nearly as much. Hand lapping is already done on premium quality barrels at the barrel factory. Break in is not near as important when the barrel has been hand lapped.

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Old 12-06-2011, 01:05 AM   #84
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SB,

How do you hand lap the barrels?

P2

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Old 12-06-2011, 01:57 AM   #85
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The best way is a sized lead slug impregnated with fine (600 or 800) lapping compound. Taking care to go from the breech end and keep your rod absolutely straight. That way you can feel any tight spots and/or burrs.

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Old 12-06-2011, 04:52 PM   #86
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Stupid question, but what would happen if you coated a bullet with lapping compound and just fired it?

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Old 12-06-2011, 06:48 PM   #87
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Old 12-06-2011, 06:56 PM   #88
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Not a stupid question at all. In fact Tubb makes a "fire lapping" kit. To me it's a lazy man's way of lapping cause it removes metal in a uniform fashion instead of letting you concentrate on burrs or tight spots as you can do when hand lapping. In other words it removes too much metal all the way around the bore for my personal tastes.




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Stupid question, but what would happen if you coated a bullet with lapping compound and just fired it?
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Old 12-06-2011, 07:20 PM   #89
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Quote:
Originally Posted by stalkingbear
Not a stupid question at all. In fact Tubb makes a "fire lapping" kit. To me it's a lazy man's way of lapping cause it removes metal in a uniform fashion instead of letting you concentrate on burrs or tight spots as you can do when hand lapping. In other words it removes too much metal all the way around the bore for my personal tastes.
Very true. I adked my master about it and got a one hour crash course you do it lesson
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Old 12-06-2011, 08:48 PM   #90
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Quote:
Originally Posted by partdeux View Post
Stupid question, but what would happen if you coated a bullet with lapping compound and just fired it?
I don't know, but why don't you try it first and let me know how it works out?
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