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kyle623
06-26-2009, 05:15 PM
I just started casting for M/L with a T/C maxiball mold. the top groove is HUGE do i fill both grooves with lube or just the bottom one?

winelover
06-26-2009, 05:54 PM
Both!

kyle623
06-26-2009, 09:31 PM
man, I'm gonna need an industrial size tub of crisco.

Geraldo
06-26-2009, 10:56 PM
I just cast up some for my .45 and shot them with only the rear groove lubed and there was no problem.

Larry Gibson
06-26-2009, 11:49 PM
I use the .50 cal MaxiBall in my TC Black Mountain Magnum. I drive it at 1525 fps and cast them of 16/1 Lead/tin alloy. I use my own lube (6/5 mix of Beeswax/virgin olive oil) but do occasionally use 1000+ Bore Butter. I long ago stopped putting lube in the front groove and only lube the rear groove. I've nothing but excellent accuracy and no leading.

Larry Gibson