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Posted: 6/29/2017 9:57:28 AM EDT
| How much over the expected diameter should you go when using a round ball? Or, if you have a better method, what is it? |
| Cerrosafe from Midway is much easier than slugging a barrel. A eutectic alloy you can melt with a heat gun and poor into a chamber or barrel. The solid metal is harder than lead for easier accurate measurements afterwords. It contracts slightly on cooling for easier extraction. 1 hour after it solidifies it's back to exactly the size at casting. It will grow a bit more over the next few days but you will already have your measurements at the 1 hour point. The total growth is on the order of .002/inch. |
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Quoted:
Cerrosafe from Midway is much easier than slugging a barrel. A eutectic alloy you can melt with a heat gun and poor into a chamber or barrel. The solid metal is harder than lead for easier accurate measurements afterwords. It contracts slightly on cooling for easier extraction. 1 hour after it solidifies it's back to exactly the size at casting. It will grow a bit more over the next few days but you will already have your measurements at the 1 hour point. The total growth is on the order of .002/inch. Have you used it in a barrel? |
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Most sinkers and muzzle loader balls are pure lead. They are softer and easier to deform than lead bullets. Lead bullets are alloyed to be harder for higher performance. Quoted:
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Why not just push a lead bullet through the bore. I bet you have one handy, too. Lead bullets are alloyed to be harder for higher performance. |
| I think a bullet would be more subject to damage from being driven through the bore than a softer ball or sinker. This is precisely why I used the Water Goblin for my slugging - it's soft enough to be easily driven through the barrel without any risk of buggering up either end of the barrel with what I was supporting it. |
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I thought Cerrosafe was marketed for chamber casting, not for barrels. Have you used it in a barrel? Quoted:
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Cerrosafe from Midway is much easier than slugging a barrel. A eutectic alloy you can melt with a heat gun and poor into a chamber or barrel. The solid metal is harder than lead for easier accurate measurements afterwords. It contracts slightly on cooling for easier extraction. 1 hour after it solidifies it's back to exactly the size at casting. It will grow a bit more over the next few days but you will already have your measurements at the 1 hour point. The total growth is on the order of .002/inch. Have you used it in a barrel? |
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