I haven't really looked, but where do you get the 99% isopropyl? All I ever have around is the stuff that like 50%?I found the lanolin mix *always* tarnished my brass.
I've had this for ~3 years now. Coconut oil, 99% Isopropyl in a 50:50 mix. Spoon it onto the felt, rub it in to spread it evenly. Roll the brass over it and resize. I use it only for bottle necked or, on occasion, 44 mag.
Wipe off by hand. Have never felt the need to re-tumble since doing this.
Typically will lay 10-20 pcs of brass down, roll them together one or two revs.
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Some brass from my last two batches.
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I'm still using the RCBS lube/pad. It's okay. I don't want to use sheep excretions, any more than I want to drink bovine excretions. The coconut oil doesn't sound to bad.