This was exactly the information I was interested in reading, CDOC. Thanks for sharing it. I am using a 405 grain Accurate mold boolit for my 4570 but it is a Marlin CB, which I doubt will accept that particular profile you are using.
If I may, where did you hit this cow and how far did she go once perforated?
Christopher
The load is 47.5gr of H335. A load suggested by Bruce. I have tested above and below his recommended load, as well as testing other powders but keep coming back to that load. It gives right at 1650fps from my 22" barrel
The bullet is cast of a 50/50 - Wheel Weights/lead and water quenched as they drop from the hot mold.
Bruce also suggested sizing in a push through sizing die to .460 (for my rifle) ASAP after casting then at some later and convenient time going back with a .461 die in a sizer/luber for lubing. I have seated the gas checks at both stages and one seems to work as well as the other.
Bruce also said to allow the bullets to "age" a minimum of 7 days (with 14 being better) before use.
He also said that he had tested bullets before the 7 days and the tester said they were good to go but his rifle told a different story.
The bullet shown is lubed with LBT (Lead Bullet Technology) soft blue, but I soon went to the White Label "BAC" which I felt gave better results.
Bruce had a home brew that he recommended, but I prefer to buy a premade product.
The "after" bullet was taken from my first cast bullet/45/70 elk and I never expected to find one of these. The shot was a quartering shot which took out the HEAVY upper front leg bone, a rib, went through lungs, a BIG and FULL paunch guts and logged just ahead of the off side hind. Remaining weight is 327.9gr. I suspect the nose was lost with the impact of the front leg after which it still penetrated about 30" +/-.
Crusty Deary Ol'Coot
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