Quote:
Originally Posted by Dragon88
Yup, what size are they and how fast are you trying to push them? Even a hard cast plain base is only good to about 1100fps or so, some more but depends on a lot of things. They may look nice but what alloy was used, what where they sized too and how good is the lube?
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THis just isn't completely true. Depending on the fit of the bullet to the bore/cyl throats, you can drive a hard cast (BHN14+) to well over 1500fps w/ little to no leading.
Measure the cyl throats, a pin gage works best, they should match your bore diameter (slug it & measure that too) or only slightly over (Less than 0.001") for best accuracy w/ least leading. Shooting a hardcast, undersized bullet too slow can also cause leading as the hot gas blows by the base & flash plates the lead to the bore.
I have a RBH in 45colt that was just leading badly, especially the first 1-2" of the blbl. The cyl throat measured 0.450", the groove dia @ 0.451". I opend the throats all to 0.452" & not only did the leading go away, but accuracy was almost twice as good @ 25yds (from 3" to under 2").