Bugged if I know, I`v got a lump of ali 8' wide x .650" thick and all my moulds come form that, I`v no idea what type of ali it is so you should be ok, just smoke the mould before casting . My bullets came out .459"/ 62" dia so sized to .459" after applying lube and then loaded up some more with 37grs of 3031, should give me around 1,3200 mv in my 27" barrel. The heaver bullets are said to be good at longer ranges so will try them at 100m and 200m, that's if they shoot ok in my 1-20" twist barrel, the test is coming up.
, Loaded and ready for testing. it`s just one fun thing after another.
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