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45 ACP leading help
Good day all, and thanks for any help you can pass along.
I've been reloading and casting for about 25 years, and over that time I've had many issues that I eventually worked out, but this time I'm stuck.
I'm load for a Ruger SR 1911 45 ACP. I'm casting a 225 grain bullet using a Lyman mold and WW air cooled. I'm sizing these to .452", bore is slugged to .451". Using a lyman 4500 to size and lube. The load I'm using is 4 grains of 700X, which is the lowest load listed. The load is very accurate, but I'm getting some barrel leading in the first inch of the barrel after about 50 rounds. An idea as to what could be causing this? I'm thinking about increasing the charge, to see if I can get a better seal. Could it be the powder, not creating pressuer fast enough?
Any help would be great. Thanks
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