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Old 12-01-2012, 02:43 AM
Steve C Steve C is offline
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Location: Phoenix, AZ
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I read that alot of bbl erosion and leading in magnums (357, 41, 44) was from bullets that did not fit the bore (001+) and bevel based bullets that allowed hot gases to get by the base.
I think you are mixing up LEADING with erosion and the things you list causes leading in revolver barrels. Erosion is caused by the blow torch effect of powder gasses and solids striking the barrel. Erosion is found in rifles and rarely in handguns as the powder used in handguns is a lot faster and of smaller amount. If you are seeing barrel erosion in your handgun its due to your powder selection and not your bullet.

If you are pushing the bullet hard you will generally produce pressures that bump up the base to fill the bore even with bevel base bullets. How much pressure you need will depend upon the hardness of the bullet.

Personally I don't use a bare base lead cast bullet for any top end load and if loading hot with slow powder I use jacketed or gas checked.
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