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Post by Fiveshooter on Apr 3, 2020 12:20:09 GMT -5
A well known gunsmith told me SBK .480 cylinders are made of carpenter steel. Way to hard and can not be reamed deeper for .475 Linebaugh
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Post by whitworth on Apr 3, 2020 12:36:11 GMT -5
A well known gunsmith told me SBK .480 cylinders are made of carpenter steel. Way to hard and can not be reamed deeper for .475 Linebaugh They can be reamed. It’s just hell on the cutters. The extra case capacity is significant when pushing top-end loads and the .475 will outpace the .480. |
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Post by plowboysghost on Apr 3, 2020 13:24:04 GMT -5
I've read an article by a man who's name escapes me at the moment (ah..here it is
I have no doubt the steel would be rough on tooling.
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Post by ss30378 on Apr 6, 2020 22:39:22 GMT -5
I’ve loaded the 400 lee in the lower crimp groove in my 480 bisley and stopped at just over 1400fps from my 6.5” barrel with 300mp. Recoil starts getting rather brisk at that level.
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Post by plowboysghost on Apr 7, 2020 16:59:42 GMT -5
I've ran several more with the Lee .476-400 loaded long and 24-gr of H-110. Supposedly that's less pressure than loaded short with Hodgdon's max of 22.3-gr. I'm not seeing any obvious sign of impending doom.
I'm trying to find specs/measurements on the Cast Performance 405-gr bullet that Hodgdon's load data is built around...specifically the crimp groove-to-base of bullet measurement, to compare to the Lee's bottom crimp groove to base measurement.
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