RBHarter
West Central AR
I won a 462-420 MP brass with PB and HB pins . I was sooooo disappointed , brass is supposed this wonder mat'l for moulds and MP are supposed to be just all that .........
I cast 9 sessions and as many additional heat cycles before I got a really good everything right bullet . Oddly filling out bases and HB wasn't where I had problems , the noses looked great too , it was bases and the mould side of the skirts that just refused . More irritating than that it seemed to go from cold wrinkles to frost to too hot to even think about band fill out in about 3 pours but only on one side . At 12 casting sessions it cleaned up and we were talking to one another but weights weren't making me too happy . They were within 7-8 gr but didn't seem to have any particular pattern for a why ..... At the same time and alloy I was pouring a 457193 single and a 3 cavity 457132 NOE version 460-543 both at +- 1.5 gr . At 15 I got the pins , mould temp , pace and appearently enough patina on the brass .
Finally I got it all together and was consistent at 417 and 380 gr +- 1 gr , 2 PB ran within 2 gr and closer after I got the base pins paired up right . I really like it now , but I was just about ready to unload it cheap just to get rid of it .
I cast 9 sessions and as many additional heat cycles before I got a really good everything right bullet . Oddly filling out bases and HB wasn't where I had problems , the noses looked great too , it was bases and the mould side of the skirts that just refused . More irritating than that it seemed to go from cold wrinkles to frost to too hot to even think about band fill out in about 3 pours but only on one side . At 12 casting sessions it cleaned up and we were talking to one another but weights weren't making me too happy . They were within 7-8 gr but didn't seem to have any particular pattern for a why ..... At the same time and alloy I was pouring a 457193 single and a 3 cavity 457132 NOE version 460-543 both at +- 1.5 gr . At 15 I got the pins , mould temp , pace and appearently enough patina on the brass .
Finally I got it all together and was consistent at 417 and 380 gr +- 1 gr , 2 PB ran within 2 gr and closer after I got the base pins paired up right . I really like it now , but I was just about ready to unload it cheap just to get rid of it .