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Posted: 8/26/2010 9:07:55 AM EDT
| What exactly is it? Is it just lead build up in the barrel from using soft lead bullets? If so, what's the big deal? I clean my guns every time I shoot, wouldn't that solve the problem or does lead build up so fast it can cause damage after a small # of shots? |
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Yes, leading is a build-up of lead. It can be (but not always) hard to clean out. It can (but not always) cause problems with feeding and excessive pressure.
But leading really is a mismatch of bullet diameter, alloy hardness, and velocity for a particular barrel. What leads at one diameter might not lead in another. What leads at one velocity might not lead in another. What leads at one hardness might not lead at another. There are a lot of myths out there and I am not going to contribute to them. What I will suggest is that you adjust the variables (diameter, hardness, velocity) until you find a combination your barrel likes. jonblack |
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Quoted:
Yes, leading is a build-up of lead. It can be (but not always) hard to clean out. It can (but not always) cause problems with feeding and excessive pressure. But leading really is a mismatch of bullet diameter, alloy hardness, and velocity for a particular barrel. What leads at one diameter might not lead in another. What leads at one velocity might not lead in another. What leads at one hardness might not lead at another. There are a lot of myths out there and I am not going to contribute to them. What I will suggest is that you adjust the variables (diameter, hardness, velocity) until you find a combination your barrel likes. jonblack Well said +1 |
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Quoted:
Yes, leading is a build-up of lead. It can be (but not always) hard to clean out. It can (but not always) cause problems with feeding and excessive pressure. But leading really is a mismatch of bullet diameter, alloy hardness, and velocity for a particular barrel. What leads at one diameter might not lead in another. What leads at one velocity might not lead in another. What leads at one hardness might not lead at another. There are a lot of myths out there and I am not going to contribute to them. What I will suggest is that you adjust the variables (diameter, hardness, velocity) until you find a combination your barrel likes. jonblack Thank you very much, how do I tell if leading is going on? Can you hold the barrel up to light and see the leading? |
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Yes, you can see the laeding. It will usually be the worse at the throat and you'll be able to see "smeared" lines of it in the rifling. Especially the grooves.
Undersized bullets will lead even if you don't push them very fast. The exploding gasses will fly around the loose fitting bullet liquidfying the lead and depositing it in the barrel. High velocities will lead with a proper sized bullet if it's too fast or the bullets too soft. Too hard a bullet will lead if you don't push it hard enough. Because it's so hard it doesn't have any give to seal the base. It acts like an undersized bullet and allows the exploding gasses to go around it, rather than sealing them off. These bullets need to be driven hard in order to seal them well. |
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