Tumble lubing with Lee Liquid Alox, or similar liquids, is popular. But lots of shooters would rather "lube" only in the grooves, usually with a lubrisizer.
Many of posters to this and other forums have said that one or the other produces results satisfactory to them. But which is better?
I suspect that with a good pistol and otherwise good ammo, either method produces groups smaller than 99% of shooters can shoot. But what about a high quality rifle shooting from a bench? Is one method better? That seems like a question that serious shooters should be trying to answer, especially shooters who enjoy competition. These obsessed guys do the most far fetched nit picking in hopes it will give them a tiny edge. Are they missing out by not using tumble lube?
A few years ago I polled competitors at our national match about their equipment and ammo. On lubes -- 79% used a lubrisizer, 7% of those also applied a tumble lube. It wasn't clear what the other 21% were doing. None admitted to using only tumble lube or no lube. Does this mean that tumble lube alone doesn't produce competitive CB ammo. I doubt it.
Do we know which is best. What do we know? Who has run some tests to find out?