From the Dillon operating manual for the XL650

LUBRICATING BRASS
To lubricate brass, use “Dillon Case
Lubricant” (#13733).
Pistol – If you’re using a carbide sizing
die, you will not need to lubricate your
cases (before sizing) when loading straightwalled
cases. If you’re not using a carbide
sizing die, you must lube the brass before
sizing. We do, however, recommend lubricating
all brass.


I clean my brass with an ultrasonic cleaner and when they're dry I spray them with "one shot" lube (very lightly). I used to tumble but don't really care about "shiney" brass and it was more work than it was worth. I shoot between 1000 to 1500 rounds a week (sometimes more, depends on what's going on) so I reload a fair amount. Lubing just makes everything smoother, I've tried without lube but it's a lot more effort. When I loaded on a turret press I didn't lube but the ram was only doing one operation at a time instead of 4 or 5 like a progressive press.

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