It won't surprize me if that .602" size is a typo, since the correct size for the .600 Jeffery is .620 and the one jacketed bullet I've got here is .620". You should email or phone Marshall. He's too busy to be on this forum much.
Old Walt Melander lists a .610 and a .622 mould.
I can understand that...What I'm shooting is a muzzleloader I built...English sporting rifle style, 1-40" twist for bullets, but it also shoots round balls very effectively with about 60 to 80 grains of 2F...
This set up was designed by a friend to shoot 120 Grains 2F, pushing a 940 grains bullet @ 1300 FPS, about 3700 lbs @ the muzzle...Already has taken a Cape Buffalo and Elephant...NEI has the mold and I will probably buy it...Just don't know how much I'll use it...Just like your story...
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